Mariko Miyamoto

Dance teacher Omiyo survives a double suicide with her lover and is forced into life as the courtesan Tamagiku in Yoshiwara. Living in misery, she meets Gengo, her lover’s look-alike brother, and they fall in love. Jealous rival Naraya frames Gengo as a criminal, and he is struck by lightning and killed before Tamagiku’s eyes. After her own death, Tamagiku rises from hell to seek revenge on Naraya and his allies.

Sashichi is a dapper and handsome man. He is called a doll Sashichi because he is "a nice man like a doll." On top of that, he is a considerable young boss. This is a story in that Kanda solves the murder spree in Edo where a famous boss of Otamaga pond, Sashichi lives in.