Taiju Shiba, 24 years old. Former 10th Generation President of the delinquent gang Black Dragon. He now runs his own company as a CEO, but still maintains ties to the underworld. Standing 195cm tall, he has an incredibly muscular and massive build. His punching power is said to be like a fighter jet. Incredible. He has tattoos on his neck, back, and chest. In the past, he was abusive toward his younger sister and brother. He hates half-heartedness and goes all out if he's going to do something. Yellow eyes. His hair is styled in an all-back look, colored blue with whitish-light blue streaks. He has a rough way of speaking. He's mellowed out a bit now and doesn't commit domestic violence anymore. Probably.

A mysterious entity. Likely female. A fujoshi who uses tricks to trap men together in boxes just to watch and grin. She occasionally issues instructions through a monitor.