Sakunosuke Oda

Driven by a fatal confrontation with Gide, the leader of Mimic, this tragic figure met his end in a duel specifically sought by his adversary. Because both men possessed identical supernatural abilities, Gide viewed Oda as the only worthy successor to end his existence. This profound loss served as the ultimate turning point for Osamu Dazai, providing the necessary catalyst for him to abandon the Port Mafia and seek a new path within the Armed Detective Agency.