Goro Izumi

1="My wings are the embodiment of justice!"

- G7 Icarus's first pre-battle catchphrase

2="Now, you are marked for judgment!"

- G7 Icarus XYZ's second pre-battle catchphrase

3="Go faster beyond fate!"

- New G7 Icarus/G7 Icarus XYZ's third pre-battle catchphrase for Archangel Kerberos and EX Strike Armors

4= "Bare witness of the bond between us!"

- Goro's catchphrase, shared alongside Taki before transforming into Jet Phoenix Armor

5="I have no limits!"

- G7 Icarus XYZ Jet Phoenix Armor's pre-battle catchphrase

6="You picked the wrong Kamen Rider to mess with!"

- G7 Icarus XYZ Jet Phoenix Armor's catchphrase before a finisher

7="XYZ Change!"

- Pre-Hazard Level 50 G7 Icarus XYZ's call whenever he changes forms

8="Chou Henshin!"

- G7 Icarus XYZ's Archangel Armor and New G7 Icarus's transformation call

9="Shuwatch!"

- G7 Icarus XYZ Jet Phoenix Armor's battle cry

10="Checkmate!"

- G7 Icarus (XYZ)'s proclamation after defeating an enemy

Goro Izumi (泉 五郎) is the main protagonist and anti-hero of Metroid: Kamen Rider Generations Vol. 3: Fates Intertwined. He is the 27-year old CEO of ZETA Technology Industries, a company that is known for their innovative gadgetry and weapons manufacturing being provided to the Tokyo Metropolitan Police and JSDF with their G7 Battle Armor series. Goro is also the younger brother of Anzu Izumi, formerly known as the Kamui Tribe ninja Rakurai, whom he is unaware of her relation to him at first until a revelation from his father via video diary.

He transforms into a unique form of Kamen Rider G7 by using the G7 Paralyzer with the Striker Key as Kamen Rider G7 Icarus (仮面ライダーG 7イカルス). He then upgrades with a to become Kamen Rider G7 Icarus XYZ (仮面ライダーG 7イカルスXYZ). He was also the original Kamen Rider New G7 Icarus (仮面ライダーニューG 7イカルス) by transforming with the and Stealth  before passing the Driver to Reiji Matsushima.

Past
Goro was born sometime in 1990 as the only child of Toshihiro Izumi and Honoka Izumi, the latter being the founder of ZETA Technology Industries. Unbeknownst to Goro, he is actually the second-born child, making him the younger brother to the missing Anzu Izumi. According to his father's video diary, they covered up Anzu's disappearance from him since he was too young to find out the truth at that time until his coming of age. Ten years later, he and his parents were hit by a truck while driving in the midst of the pitch-black night. During the incident, he was saved by a mysterious individual who whispered to him to "live on" and promises to protect him. Goro miraculously survived the accident, but he sustained a massive scar in his abdomen. Unfortunately, his parents died two days after.

He was later taken in and raised by his grandfather Takagi Izumi, all while inheriting his family's inheritance. Growing up, Goro became a child prodigy inventor, and is recognized by his peers because of his formidable genius. As a teen, Goro is very ambitious with the intent of recognizing the world of his intelligence.

At the age of 21, Goro graduated with a master's degree in Computer Science in Tohoku University. He immediately worked in ZETA Technology Industries as a tech intern, under the guidance of his then mentor Natsuki Nakajima. Goro's level of intellect along with his talents for gadgetry leads to him be promoted to higher ranks, and ultimately as the CEO at the age of  25, carrying on the legacy of his father.

Personality
Goro is a gentlemanly, charming and hard-working man who values hard work and perseverance above all else, being a CEO of a multinational company, he proves to be a stubborn workaholic and is well-respected authority figure of ZETA Technology Industries. He is quite arrogant, ego-centric, and self-absorbed considering his reputation and good publicity. Also, he is also a prodigy since his teenage years establishing many accomplishments in his life with his superhumanly genius-level intellect, and eventually becoming the self-made man that he is now.

But, Goro is not without a dark and troubled side, as his true personality is that of a textbook Byronic hero. Having lost his parents to a car accident which left him miraculously survived, Goro grew up in a life of loneliness; becoming antisocial and insecure of himself, prefering to be isolated under his mansion's workshop. Despite all his accomplishments, Goro is desperate in looking for a purpose in his life besides being a hard-working corporate boss. In contrast to the Space Explorers, Goro is very cold, tactical, and pragmatic, he is more willing make decisions that are morally questionable even if by means necessary and is very aware of the consequences of his actions. Unlike most anti-heroic Riders, Goro can be nasty, sociopathic, and spiteful if he wants to, occasionally showcasing a mean and sadistic streak, preferring to rush things and deal with complicated situations the only way he knew how, which causes problems for the other characters. Goro has an aversion to killing as his moral code, nevertheless he's has no hesitation of killing unless it's necessary. Beneath it all, lies a man of indomitable will and the willingness to defy fate.

Goro has a tendency to be paranoid even in the most unpleasant situations, and he is very aware of it. Making him disturbingly similar to. Unlike Sento, who can be easily pushed too far during the ensuing conflict for the Pandora Box, Goro prefered to stay on the sidelines until he takes the opportunity to take action. His paranoia serve as his fatal flaw; in which he's prone to make wrong judgments based on theory in his point of view that haphazardly puts him or anyone around him in danger.

After learning his father's secret about his older sister, Goro seems to be both saddened and disappointed by his father's actions at the same time due to the fact that he is unaware of Anzu's disappearance before his birth. It is likely that his parents want to pressure him on being made an heir to his father's company above all else. Regardless of that, it was revealed the reason his father had to keep a secret from him, is for Goro to find Anzu in his coming of age. After reuniting with his sister, Goro is determined to do whatever he can to make up for the 27 years she missed, even though that their parents are long gone. Nevertheless, Goro cares for his older sister's well-being and is more mature towards her in comparison.

After learning his sister's motives in taking revenge against, Goro is against her agenda due to the fact that her actions will not only bring harm to those she cares (including Goro himself), but also to innocent lives. This is because he believes that revenge is a pointless concept, and a product of endangering innocent people.

Despite his superficial pride, bravado, and flaws, Goro deeply cares for other people and is willing to help them in need. This is likely after meeting notable people like Taki, a kunoichi from the past who ends up settling into his home along with her student and, a scientist from Touto whose level of intellect rivals his to the point they develop an odd friendship. Eventually, that goal in life he was seeking after was actually protecting humanity.

After finding out Sento's past identity as, who is responsible for experimenting on his sister, his friendship with Sento is strained to the point Goro attempts to kill him in revenge for his sister. However, Anzu stops him from doing so. Because if he did kill Sento, Goro would have become as vengeful as his sister. He forgives Sento in a begrudging way out of respect as he knows that a Kamen Rider has a responsibility to protect people, regardless of how he got his powers. Unfortunately, when the war for Pandora Box break out, he is left with no choice to betray Sento, although it was actually a facade. This is later justified once Goro becomes weary of the Hazard Trigger, Goro steeled himself to stop Sento in the event the latter going rogue.

By the time the war between for the Pandora Box immediately break out, Goro is determined to stop the war by all means necessary. Even if it means for him to get his hands dirty; he plays on both sides of the conflict and willingly fractured his friendship with Sento as a means to do so. He has no qualms disobeying 's orders, butting heads with him or any of the, or even manipulating the trio's stupidity by extension to further his plans. Despite being at odds against Kazumi, Goro seems to have genuine respect towards him, Both Kazumi and his men reciprocated that same respect in return, to the point that the Hokuto Three Crows convinced him to be turned into Hazard Smashes, despite his warnings knowing that they might die upon defeat, thus left without a choice after Akaba told everything he and his comrades went through before they were drafted to Hokuto's military.

It is also implied that Goro is fond of mechas in anime, more particularly . It is the reason why he christened Taki's powered-up form as the Tengen Toppa Evolution.

Goro has a couple of catchphrases, as Kamen Rider G7 Icarus XYZ, before a battle he says, "You are marked for judgment!" (貴様はジャッジメントの目印!). As New G7 Icarus, and G7 Icarus XYZ Archangel Kerberos and EX Strike Armor, he says "Go faster beyond fate!" (運命を超えてに速く進むぜ!). In Jet Phoenix Armor, he says "I have no limits!" (俺の限界いわない!) before going to battle. However, before transforming, both he and Taki will proclaim altogether, "Bare witness of the bond between us!" (見せてやるぜ俺達の絆！). After defeating an enemy, he usually says "Checkmate!" (チェックメイト！) as if he treated a battle like a game of chess.

In spite of his polite, suave, charming and charismatic traits, Goro, like most characters in the story, has a tendency to swear and showcase crude, belligerent, and ungentlemanly behavior. He often addresses other people (with the exception of the Space Explorers, Anzu, Taki, Natsu, and Sento) with てめえ, a pronoun used by delinquents, especially towards people he doesn't like. Despite being a chick magnet, Goro has a tendency to hurt women, especially if they have done something wrong, such as in the case of Hikaru Togami when she was exposed as a serial killer who let loose the Reaper Bugster.

Family

 * Toshihiro Izumi - Father
 * Honoka Izumi - Mother
 * Anzu Izumi - Elder sister, Kamen Rider G7 Type-S
 * Takagi Izumi - Grandfather

Powers And Abilities

 * Genius-Level Intellect: Goro's defining trait is his formidable intelligence, rivaling that of Sento Kiryu and Kuroto Dan. As a child prodigy, he is recognized for inventions that is known to ZETA Tech. Similarly, Goro has built the majority, if not all, of the G7 System's arsenals on his own.
 * Genius-Level Strategist: Paired with his intelligence is his ability to formulate plans of any kind; be it convoluted or precisely adjustable methods.
 *  100: After gaining access to Archangel Armor, Goro is injected by Anzu's internal Nebula Gas through the Arc-Winger, starting with a Hazard Level of 50. At this point he gains superhuman abilities much like her sister did during the time she was experimented by Faust. Goro can now transform with the Build Driver (and later, Sclash Driver) without any restrictions, while he remains unaffected by anti-Nebula Gas system of his suit. After gaining access into Jet Phoenix Armor, his Hazard Level has reached at its maximum limit: 100, a level that can't be normally unattainable by any conventional means.
 * Quickdraw Proficiency: The greatest feat to Goro's fighting style is his ability to take out his sidearm in a split-second. This ability is also inherited by his older sister.
 * Tengokuryuken: This is Goro's signature fighting style. With this, he can defeat his opponents at a time-delayed effect. Similarly, Anzu has a version of his fighting style combined with her ninja arts.
 * Augmentation:By using a Fullbottle in his hand without transforming, Goro can gain abilities on said Fullbottle's traits:
 * Jet Phoenix: Goro can revive a deceased person by injecting the Fullbottle's essence into their corpse. This is one of the few abilities that fits the phoenix motif where the normal Phoenix Fullbottle could not.
 * Hazard Level Ability Restriction: One of the functions of Archangel Armor. Goro can seal certain abilities of a Smash, Build Driver, and/or Transteam Gun user when donning the armor.
 * Hazard Level Reduction: Goro can use Archangel Armor's ability to permanently de-power anyone with a high Hazard Level upon contact by neutralizing the effects of Nebula Gas of the target's body, reducing their Hazard Levels to 0. It also applies when G7 Icarus XYZ inflicts melee damage against a Smash or anyone using a Build Driver, Sclash Driver or Transteam Gun, etc., the target's Hazard Level is permanently reduced.
 *  Nullification: According to Anzu Izumi, the Archangel Armor is designed to disable the Transteam System. This is paired with the armor's ability to decrease the opponent's Hazard Level upon contact, rendering the usage of the Transteam Gun useless. This was demonstrated in G7 Icarus XYZ's fight against, as each time Stalk takes damage, it not only degraded his Hazard Level, it also leaves Soichi unable to use the Transteam Gun after his Hazard Level is reduced to 0.
 *  Reverse Engineering: Due to his affinity for gadgetry and technology, Goro is impeccably capable of reverse engineering 's creations such as the and . A feat that would be overshadowed by . As such being able to construct backups of his Build Driver, as well as Sclash Drivers for  and G7 Type-S in the event of their belts being destroyed. This explains how Goro created his own Sclash Driver by reverse engineering Sawatari's own Driver by disassembling its components before putting them back together properly.
 * Anti- Magnetic Field (反エボルト磁場): The main function of EX Strike Armor is to generate a special magnetic field. If Evolto, or body he possesses are within reach of Goro and his party. The magnetic field prevents Evolto from possessing anyone within Goro's presence and using his full power, at the same time his ability of manipulating Pandora Box are sealed.

Weaknesses

 * Narcissism: Much like Sento, Goro suffers a case of textbook narcissism. He has overwhelming confidence in his own skills, so he tends to be proud of his own achievements and look down on others (especially anyone who relies on his inventions), which contributes to his prideful personality. This also applies to his fighting skills, he is often blinded by his ego in the middle of the battle to the point he is caught off guard, according to Taki.
 * : Despite being able to transform with the Build Driver, the Hazard Trigger is proven to be unstable with the G7 system-integrated Build Driver. As the Kamen Rider G7 system being the antithesis to 's, the Hazard Trigger is designed specifically for himself to access his Hazard Forms and the forms for the Full Full RabbitTank bottles.
 * Paranoia: Goro's fatal flaw is his tendency of becoming paranoid, this is carried on when he gained a high Hazard Level surpassing than those the likes of Build and Grease. This paranoia has becoming more evident when he warns about the  in Sento's possession, which causes him to engage into disagreements with the likes of Sento and Sawatari, and even make decisions that tend to become his undoing such as freeing  from his prison caused him to resurface as Kamen Rider Rogue, as well giving Sento the Hazard Trigger nearly injuring himself.
 * Antisocial Personality Disorder: Goro's main fatal flaw is his sociopathic tendencies, which can be a detriment to everyone around him. Given the fact that Goro is not above resorting to morally-questionable methods, even for his own standards, Goro also shows no remorse in manipulating Ryohei Kusanagi by having him use his Build Driver into murdering Gentoku Himuro in the proxy fight. Nevertheless, Goro is aware of his antisocial tendencies.

Devices

 * XGM-01 G7 Paralyzer - Primary weapon and transformation device as G7 Icarus. Later became the G7 Sky Buster.
 * - Secondary transformation device as G7 Icarus XYZ
 * - Tertiary transformation device as New G7 Icarus.
 * G7 Armor Keys - G7 Icarus's Transformation trinkets.
 * - G7 Icarus XYZ's/New G7 Icarus's Transformation trinkets.
 * - New G7 Icarus's Transformation trinkets.
 * Arc-Winger - Slot adapter for Build Driver to access Archangel Armor and personal familiar.
 * G7 Jet Visor -  Secondary slot adapter for Build Driver to access Jet Phoenix Armor.
 * G7 EXlasher - Tertiary slot adapter for Build Driver to access EX Strike Armor and personal weapon
 * Nova Bracer - G7 Icarus XYZ's stopwatch device acquired from Nova the Archdragon.

Weapons

 * G7 Paralyzer
 * XGR-02 Artemis - G7 Icarus's semi-automatic laser sniper rifle.
 * XGS-03 Yoshiyuki - G7 Icarus's electromagnetic-bladed katana weapon.
 * XGK-04 Blitzenschneider - G7 Icarus's electromagnetic combat knife.
 * Build Driver
 * XGM-01II G7 Sky Buster - Primary side-arm weapon. G7 Icarus XYZ's upgraded version of the XGM-01 G7 Paralyzer.
 * XGR-02II Neo Artemis - Bolt-action laser sniper rifle. G7 Icarus XYZ's upgraded version of the XGR-02 Artemis.
 * XGS-03II Yoshiyuki Shin - Electromagnetic katana. G7 Icarus XYZ's upgraded version of the XGS-03 Yoshiyuki.
 * XGMWR-05 Requiem - G7 Icarus XYZ's modular weapon with three attachments:
 * XGMWR-05+XAR-06 Warhammer - Requiem's pulse laser rifle attachment.
 * XGMWR-05+XAS-07 Kagekiri - Requiem's chainsaw attachment
 * XGMWR-05+XAD-08 Yoroitoshi - Requiem's spear attachment
 * Tengeki Drillancer -  G7 Icarus XYZ's drill like weapon in conjuction with the Drill Fullbottle.
 * Silver Fang - One of G7 Icarus XYZ's auxiliary weapons obtained from Jushin Tiger.
 * Inferno Missile - One of G7 Icarus XYZ's auxiliary weapons obtained from Ifrit the Firebird.
 * Genbu Shield - One of G7 Icarus XYZ's auxiliary weapons obtained from Cagnazzo of the Raging Torrents.
 * - Briefly borrowed from and . Later attainable via the Go-On Wings' Fullbottles.
 * - G7 Icarus XYZ Archangel Kerberos and Jet Phoenix Armor's personal weapons.
 * Sclash Driver
 * Shadow Saber - New G7 Icarus's primary weapon.
 * - New G7 Icarus's secondary weapon.

Vehicles

 * Ride Winger - G7 Icarus (XYZ)'s personal Rider Machine.

Relationships

 * Family
 * Anzu Izumi: At first, Goro was unaware that he had an older sister. This is because months before he was born, Anzu mysteriously disappeared due to an accident in the beach, following that fateful incident, her sudden disappearance was kept secret from him. Fast forward the following 27 years, it is his father's video diary that Goro indeed discovers that he has an older sister, and his parents bear the sin of keeping it a secret. He later begins to suspect that Rakurai (Anzu's ninja identity) is connected to Anzu herself, when Rakurai encounters Goro in the Hoko Memorial Pillar visiting his parents' graves, Rakurai denies of being Anzu. That is until during the siege of the Touto Institute by Faust, Rakurai reveals herself to be Anzu, his older sister. Anzu would later join his brother's side all while manipulating the Kamui Tribe to get revenge against Faust in regards to her history against the evil organization. Upon hearing this, Goro disapproves her agenda because he points out that not only her actions will endanger those she cared for (namely Goro himself), she would have innocent people involved, albeit indirectly, by allowing Shingetsu kill a lot of people, among her victims includes those were Touto Prime Minister, and later his son , who is also revealed to be Night Rogue, the leader of Faust. After Anzu decided to return home to her younger brother, both siblings develop their familial relationship after the 27 years she missed.
 * Allies
 * Kasumi Kiriyama: His loyal maid. Although Goro has known Kasumi back in their childhood days, Kasumi has ever since very dedicated so much to Goro and is the latter's only close friend and companion. Kasumi has been doing all the household work whenever her master is out working.
 * Taki: Though their first meeting was a rocky start, he later decided to bring Taki and Natsu to his mansion and ended up living with him. Taki was initially cold towards him at first, until Goro reveals his tragic past to her as a means of reaching out to her. Eventually, Taki falls in love with Goro due to him having a resemblance to a certain ninja Taki looked up to in her teens and Goro himself guides Taki in terms of trying to adapt into the modern era. Their relationship served as a driving force throughout the series, much like between Samus and Mitsuzane during the first two volumes, which is made apparent according to Vernage, such bond between Goro and Taki is the result of the former unlocking the former's final form.
 * Natsu:
 * Natsuki Nakajima:
 * Space Explorers
 * Samus Aran:
 * Ange and friends
 * Angelise Ikaruga Misurugi
 * Tusk
 * Momoka Oginome
 * Hilda
 * Salamandinay
 * Hokuto government
 * Goro (and by extension, his parents) know Tajimi as a family friend. Upon learning the break out of the war for Pandora Box, Goro begins to lose his respect towards Tajimi because of her altered personality caused by 's energy.
 * Both Goro and Sawatari met in a rocky start, upon hearing his willingness to join into the war, he and his underlings belittle him, until Goro proved his worth by challenging him into a fight, which ended in a draw. Ultimately, he and the Three Crows begin to admire his determination and charisma. When Sawatari learns that Goro had his underlings undergo enhancements via, and consequently Aoba's demise at the hands of the Kerberos Smash, their partnership is strained. If anything, both of their mutual respect still remains. Sawatari can be easily ticked off whenever Goro tries to harm , who happens to be his idol, Mii-Tan. Also, both he and Anzu can be easily irritated when it comes to Sawatari's obsession with Mii-Tan.
 * As with the rest of the Hokuto Three Crows, Akaba looked down on Goro at first; Goro responds by poking fun of his hair, and then started a fight with him. Eventually, Akaba is one of the first of Sawatari's men to earn Goro's respect. In turn, Goro eventually sympathizes with him when he learns their past, and even convinced him to have himself and his comrades undergo the Hazard Trigger enhancement.
 * As with the rest of the Hokuto Three Crows, Aoba appears to be impressed with Goro's skills and personality which greatly influenced him, his comrades and captain. When Aoba died at the hands of the Kerberos Smash, Goro felt responsible for his well-being and is nearly afraid of facing Sawatari because of that. Sawatari eventually tells Goro not to take it upon himself before entrusting him his Kuwagata Full Bottle begrudgingly and promises to beat Kerberos.
 * As with the rest of the Hokuto Three Crows, Kiba appears to idolize Goro's bravado, often gets into an argument with him and his sister.
 * Enemies
 * Space Demon Clan Kamui Tribe
 * Shingetsu: Goro and Shingetsu already became bitter rivals in their first encounter. The latter sees him as a worthy opponent who can match his strength. Their rivalry grew worse once Shingetsu's insanity went off the deep end because of his lust for the Pandora Box's power.
 * / Night Rogue: Although they have interacted in rare occasions, Goro is revealed to have a respect for Gentoku. But, this is proven to be false due to his suspicions about the Touto government; Goro looks down on Gentoku with disdain because of his negative personality. This has become apparent when he discovered that he is also Night Rogue. Unfortunately, Goro never had the chance to fight Rogue due to Shingetsu immediately killing Gentoku after his identity exposed; in which his sister Anzu is responsible for. After Gentoku becomes Kamen Rider Rogue, Goro's disdain towards him never changes, to the point he manipulates Ryohei Kusanagi into killing Gentoku by proxy.
 * / Blood Stalk: Goro sees Blood Stalk as a major threat ever since he saw his G7 suits used by Guardians under his control, which prompted him to self-destruct the G7 suits worn by the Faust Guardians. Ironically, Faust using the G7 suits for their objective leads to their undoing: Soichi's defeat at Goro's hands and subsequently killed by Shingetsu. However, when Anzu and Goro decided to resurrect Soichi as an undead, Goro proposes a teeth-clenched alliance with Soichi concerning with Sento's problem with the Hazard Trigger. Regardless, Goro still maintains his distrustful attitude towards Soichi. When Elpis Corporation gets involved in the conflict, Soichi becomes concerned with Sento knowing that he'll be used by Kaguya Kozuki so the she can claim the Pandora Box for herself, he even asks Goro to look after Sento before Kaguya can make her move.
 * Elpis Corporation:
 * Kaguya Kozuki: Goro both loathes and distrusts Kaguya, and he is very aware that she is not very trustworthy to begin with. He is very paranoid towards her, as Goro's suspicions about her causes the latter's sinister nature to surface behind closed doors.
 * Ryohei Kusanagi:
 * Super Sentai
 * Others
 * Though his meeting with Sento was a bit formal, having learned of his genius-level intellect Goro begins to admire Sento very much, especially after learning the former that he is Kamen Rider Build. In turn, Sento would present him a Build Driver and the Crow and Stealth Full Bottles to upgrade his prototype armor. Despite mocking Sento for his actions after helped an  escape from the authorities, Goro still respects him. Their friendship was temporarily strained after he finds out that Sento is also revealed to be, the founder of . Regardless, Goro begrudgingly decided to accept Sento even if he was once Katsuragi, reminding him that the most important thing about being a Kamen Rider is to protect people.
 * Though they interact little much in the story. It seems that Goro is very skeptical towards Sawa after learning that she was worked as a spy for Namba Heavy Industries. Once she is suspected as the traitor according to Reiji Matsushima, Goro eventually loses all respect towards her, and outright says that he doesn't even care what is going to happen to her after she is held in custody by Elpis Corporation. In actuality, Goro pretended not to care about Sawa because he was unable to stop Elpis Corporation from taking her as their prisoner, thus blaming himself for this failure.
 * Reiji Matsushima: Although they got off to a rocky start, Goro seems to be very skeptical towards Reiji due to him being Kaguya's secretary. He pitied the young man after telling him he was a pawn to Kaguya's selfish goals. Since then, Reiji decided to defect to Goro's side and Goro himself eventually guided him to his path of becoming a Rider. In short, Goro himself acts as a mentor to Reiji due to their similarities.
 * Super Sentai
 * Others
 * Though his meeting with Sento was a bit formal, having learned of his genius-level intellect Goro begins to admire Sento very much, especially after learning the former that he is Kamen Rider Build. In turn, Sento would present him a Build Driver and the Crow and Stealth Full Bottles to upgrade his prototype armor. Despite mocking Sento for his actions after helped an  escape from the authorities, Goro still respects him. Their friendship was temporarily strained after he finds out that Sento is also revealed to be, the founder of . Regardless, Goro begrudgingly decided to accept Sento even if he was once Katsuragi, reminding him that the most important thing about being a Kamen Rider is to protect people.
 * Though they interact little much in the story. It seems that Goro is very skeptical towards Sawa after learning that she was worked as a spy for Namba Heavy Industries. Once she is suspected as the traitor according to Reiji Matsushima, Goro eventually loses all respect towards her, and outright says that he doesn't even care what is going to happen to her after she is held in custody by Elpis Corporation. In actuality, Goro pretended not to care about Sawa because he was unable to stop Elpis Corporation from taking her as their prisoner, thus blaming himself for this failure.
 * Reiji Matsushima: Although they got off to a rocky start, Goro seems to be very skeptical towards Reiji due to him being Kaguya's secretary. He pitied the young man after telling him he was a pawn to Kaguya's selfish goals. Since then, Reiji decided to defect to Goro's side and Goro himself eventually guided him to his path of becoming a Rider. In short, Goro himself acts as a mentor to Reiji due to their similarities.
 * Though his meeting with Sento was a bit formal, having learned of his genius-level intellect Goro begins to admire Sento very much, especially after learning the former that he is Kamen Rider Build. In turn, Sento would present him a Build Driver and the Crow and Stealth Full Bottles to upgrade his prototype armor. Despite mocking Sento for his actions after helped an  escape from the authorities, Goro still respects him. Their friendship was temporarily strained after he finds out that Sento is also revealed to be, the founder of . Regardless, Goro begrudgingly decided to accept Sento even if he was once Katsuragi, reminding him that the most important thing about being a Kamen Rider is to protect people.
 * Though they interact little much in the story. It seems that Goro is very skeptical towards Sawa after learning that she was worked as a spy for Namba Heavy Industries. Once she is suspected as the traitor according to Reiji Matsushima, Goro eventually loses all respect towards her, and outright says that he doesn't even care what is going to happen to her after she is held in custody by Elpis Corporation. In actuality, Goro pretended not to care about Sawa because he was unable to stop Elpis Corporation from taking her as their prisoner, thus blaming himself for this failure.
 * Reiji Matsushima: Although they got off to a rocky start, Goro seems to be very skeptical towards Reiji due to him being Kaguya's secretary. He pitied the young man after telling him he was a pawn to Kaguya's selfish goals. Since then, Reiji decided to defect to Goro's side and Goro himself eventually guided him to his path of becoming a Rider. In short, Goro himself acts as a mentor to Reiji due to their similarities.

Portrayal
Goro Izumi is portrayed by Taishi Nakagawa (中川 大志). As Kamen Rider G7 Icarus, his suit actor is Watanabe Jun (渡辺 淳), who would later on go to portray in the story and in . As Kamen Rider G7 Icarus XYZ, his suit actor is Iwakami Hirokazu (岩上 弘数).

Etymology
Goro's name translates as "fifth rookie", referencing as the author's first original character being an experienced newcomer as a Kamen Rider.

His alias of Kuroba translates to "black wings", sharing the main Hokuto Three Crows' color theme with Akaba (赤羽 lit., "red wings"), Kiba (黄羽 lit. "yellow wings") and Aoba (青羽 lit. "blue wings"), as well his sister's alias of Shirahane (白羽 lit., "white wings"), hence his rider form being black. Ironically, he is often compared to, another black-colored Rider.