Takeru Futatsugi

Diamantino, who is in his human name Takeru Futatsugi (二木 武, Futatsugi Takeru), is a 18 year old teenage Petrosapien boy from Petropia who have been chosen as a Kamen Rider Diamondhead (仮面ライダーダイアモンドヘッド).

Personality
A classmate of Chise, whom he has a crush on and is on the soccer team. He is a hard worker and very polite and kind. However, he soon develops feelings for Chise. He has since come to terms that he does like Chise, even going so far as to tell his closest male friends of his growing feelings. His feelings for Chise stem from the fact that he was happy that someone recognized his efforts and saw him for who he was, along with the fact that despite how clumsy she is she puts her all to helping others.

Devices

 * Omni-Driver: Transformation belt.
 * Omnicard Diamondhead: Transformation card.

Powers & Abilities
Diamondhead's body is composed of extremely thick organic green crystals. He has the ability to manipulate the atomic structure of his physiology at will, allowing him to form his limbs into diamond weapons such as blades and bludgeons. Moreover, he can control all crystals he generates.

He can make monstrous and large clusters of crystals, conjuring walls and forming crystal shields and ramps that he can slide upon. He can also generate crystals from the ground at a distance. He can reshape his projectiles into limited shapes, and can also form gaping hands to capture enemies.

Diamondhead's body resembles a living prism, allowing weapons similar to lasers to be refracted and rendered useless.

Diamondhead is able to absorb various forms of energy, such as lasers and lightning.

Due to the natural density of crystal, Diamondhead is extremely durable to physical impacts.

Because of Diamondhead being made out of organic crystals, Diamondhead is immune to aging, as crystals do not age.

Diamondhead does not give off body heat, making him impossible to track by body temperature.

Diamondhead can regenerate, but to a limited extent.