Associate of the Iwaki family who assumes leadership after his mentor's assassination. Initially seeks revenge but is forced into a truce. Later defies the agreement to assassinate Chairman Sakamoto, resulting in his injury, a desperate hospital escape, and eventual capture followed by a fatal stabbing.
Iwaki acts as a paternal figure and mentor to Nozaki, preparing him for leadership.
Nozaki financially employs Joe to carry out a targeted assassination.
Asami is the biological sister of Nozaki, deeply invested in his survival.
Shinkichi acts as a crucial ally facilitating Nozaki's dangerous hospital breakout.