Kenichiro Doman leads the Minato Kai gang, distinguished by their blue motif. His leadership demands members fight only from personal conviction, not blind obedience, reflecting his core values and shaping the gang's internal dynamics. A significant connection binds him to Mitsukuni Asamine, older brother of Matakara Asamine; Kenichiro pledged to protect Matakara, a promise driving his actions and decisions throughout the story, defining his protective role.
His past includes a formative encounter where he intervened to save a young Akutaro Shindo. This act sparked intense admiration in Akutaro, though their relationship later soured into hostility after Akutaro perceived dismissal, fueling a vengeful desire that fueled broader gang conflicts.
A pivotal duel against Matakara in Episode 11 ended in Kenichiro's defeat. The reason remains ambiguous – whether overcome by Matakara's strength or a deliberate choice to hold back, honoring his protective vow to Mitsukuni. Following his defeat and the resolution of major conflicts, Kenichiro's story concludes with reconciliation. He apologizes for his actions during the gang wars, demonstrating accountability, and finds himself easily forgiven by others, including former adversaries, signaling restored relationships and a move toward peace.