Sei Hiraizumi

Up until this point, young Sayuri Nanjo has had to live most of her life in a nun-run boarding school for orphans and away from her parents. That's all about to change when her real father mysteriously comes to get her and finally bring her home.

Sawaki is a postman who's not quite thrilled about his boring way of life. But his life is about to change when he delivers mail to his old schoolmate Noguchi, who's now a member of the Yakuza, the Japanese Mafia, and just finished cutting his little finger off.