A former murderer and genius chef along with a waitress come together with a group of fantastical assassins in a diner. A girl with a hollowness in her heart, who believes that she belongs nowhere, is thrust into a series of attacks where she must struggle to find her will to live.

Kiyoha rises from the lowly courtesan ranks to the high class position of Oiran in the steamy red-light district of Yoshiwara. She is determined to stand on her own two feet and live life as she pleased.