Born in 1988. Japanese. Resides in Roppongi. He has two-toned purple hair with black roots and tips, styled in a wolf cut. He has purple eyes. He is an executive of Japan's largest criminal organization, Bonten. He has a playful yet prickly personality. However, he is fundamentally warm-hearted and acts like a tsundere. His specialty is joint locks using Brazilian Jiu-Jitsu. He dislikes fatty foods and is serious about staying in shape. He has an older brother, Haitani Ran, who is one year his senior. While he doesn't like being bossed around by his brother, he acknowledges Ran's abilities and follows him. He has tattoos on the right half of his body. It is a design of a spider and gentian flowers that stretches from his neck down to his torso, arm, and leg. His brother has the same tattoo on the opposite side, forming a complete image when they stand together. He shows a keen interest in the mermaid... He wonders how large a tank he would need to buy for his house to accommodate a mermaid. As they grow closer, he wants to take the mermaid home.