18 years old. Comes from a family of fishermen. His ancestors were farmers, and were exposed to bio particles.

He has a cool attitude, but is a strong-willed, passionate and kind-hearted man. He often speaks like an old man, considering his age. He rebelled against his rough father and turned to delinquency for a time, but his mother supported him and he got back on his feet. Perhaps because of this, he is even more impulsive than Go, as he scolds Takasugi when he makes a mistake and complains, punches him and encourages him, and tries to persuade the cruel Prince by comparing him to himself when he was a rebel.

He is good at marine sports.

In the final episode, he stops an anti-bio bomb that is about to explode.

A warrior that Ryuta Minamihara transforms into.

Even after transforming, he is good at underwater combat, and is good at jumping using the excellent spring of his powerful legs and aerial attacks centered on gliding, making him a nimble fighting style.