Kentaro Yamamoto (voiced by Daisuke Ono), the older brother who is calm and reliable in his work and trusted by his younger brother, Ryuu Tachibana (voiced by Satoshi Hino), who has a hot temper and always takes action before his head, and Kazuya Sugihara (voiced by Kazuki Hosoki), who is full of longing for a big career in the underworld, are all members of the underworld
Kentaro Yamamoto (voiced by Daisuke Ono), the older brother who is calm and reliable in his work and trusted by his younger brother, Ryuu Tachibana (voiced by Satoshi Hino), who has a hot temper and always takes action before his head, and Kazuya Sugihara (voiced by Kazuki Hosoki), who is full of longing for a big career in the underworld, are all members of the underworld