Gin Akutagawa

A member of the martial arts group "Black Lizard" and the younger sister of Akutagawa. She has long black hair tied loosely at the back, a mask covering her mouth, and usually remains silent to the point where she is unrecognizable at first glance. However, those who have seen her true face, like Hanabusa, praise her beauty and adorable voice, calling her "the black-haired nadeshiko." She is a woman known for her agility, moving without detection by her fellow professionals, and fights using a kodachi hidden in her sleeve.

During the battle with "The Five-Peak Saints," she went to negotiate with Fitzgerald and protected Yosano alongside Tachihara, who was being pursued by one of the "Hunting Dogs." She ended up being controlled to stab herself with her kodachi, but thanks to Tachihara's intervention, only suffered minor injuries. After returning to the Mafia, she was bitten by Higuchi, who had become a vampire.

Her name comes from the protagonist of Ryūnosuke Akutagawa's short story "Ogin."