Mikey is a 23-year-old man of average height with black eyes, short white hair, and a neck tattoo. He has dark circles under his eyes and a weary expression. He typically wears dark clothing. Mikey's past is troubled; the death of his sister led to significant changes in his personality and actions. He formed the Bonten gang after his past gang, the Tokyo Manji Gang, was involved in criminal activity. Bonten members include Sanzu, Ran, Rindu, Takeomi, and Kakucho, with Mikey as the leader.