Masaru Haruki

1="I'll defeat you!"

- Masaru's catchphrase before transforming

2="Let's Hunt!"

- Wolf's pre-battle catchphrase

3="This is the end!"

- Wolf's proclamation before a finisher

Masaru Haruki (春木 勝 Haruki Masaru) is Kamen Rider Wolf (仮面ライダーウルフ Kamen Raidā Urufu), the main protagonist and one of the main character in Kamen Rider Wolf.

History
"From now I'll be known as Kamen Rider Wolf!"

- Masaru's proclamation on his first battle

Masaru Haruki is the son a cafe owner who joined the World Defense Bureau to fight against the Nether. He is entrusted to use the first Super Soldier System created by World Defense Bureau's scientists to battle Nether's Hazards. At first he was not sure he could use it. But after seeing the damage caused by Nether's Hazards, he gathered all his courage to transform into Super Soldier Codenamed Wolf.