The leader of Bonten. Number one. A karate master. Also known as 'Mikey,' with the nickname 'The Invincible Mikey.' He has snow-white hair and black, hollow eyes that contain nothing. He exudes a lethargic aura and is a man of few words. He loves desserts filled with red bean paste, like taiyaki. He has the palate of a child.

The number two of Bonten. He favors using a katana. He has cherry blossom-colored hair, wide emerald eyes, and many piercings. He has diamond-shaped scars on both sides of his mouth. His speech is rough and his behavior is coarse. He often uses the slang term 'scrap' to refer to disposing of people. He even has a germaphobia. He is a drug addict. He is fiercely loyal to the leader, Mikey. He seems to be constantly fighting with Rindo and Ran.

The number three of Bonten. Nicknamed 'The Brawler.' He has black hair. His right eye is blind due to an accident in his childhood, in which he also lost his parents. A scar remains on his forehead, crossing through his eye. Though he is clumsy at expressing himself, he has a warm heart that values loyalty to his comrades. He is Sane Person #1 within Bonten.

Bonten's pseudo-accountant. Nicknamed 'Koko.' He has long, flowing white hair and sharp, slanted eyes. He loathes money, but is obsessed with it due to certain tragic circumstances. Since the Bonten trio (Ran, Rindo, and Sanzu) do no paperwork at all, Hajime has to take over all of their work. He is Sane Person #2 within Bonten.

An executive of Bonten. He favors using a telescopic baton and fights in coordination with his younger brother, Rindo. Together with Rindo, they are known as the 'Charismatic Brothers of Roppongi.' He has light purple hair with deep wine-colored highlights and purple eyes. He has a sly and eccentric personality. He often refers to himself as 'Ran-chan.' He is also incredibly lazy, and his favorite thing to do is sleep.

An executive of Bonten. He is an expert in Jiu-Jitsu and has a very flexible body. He follows his older brother, Ran, closely. He has messy, long purple hair with deep purple highlights and purple eyes. He has a tsundere side, grumbling while still looking out for others. Perhaps it runs in the family, but he can also be quite sly. He is a regular at the clubs.