Manami loses her parents one after another and lives with her older brother, Seiji. - At the delivery destination of the flower shop he started working at because he could no longer be dependent on his older brother, he sees a woman who appears to be Hitomi, a teacher from his alma mater who suddenly disappeared and is no longer known. - Among the men surrounding Hitomi in a seedy bar, a familiar face appears... - Manami consults her childhood friend and detective Shuhei, who is definitely her brother's boss, but...