Komori Yui is a positive-thinking girl who nevertheless is troubled by seeing spirits and experiencing poltergeist phenomena. In her second year in high school, she transfers to a new school—a night school for entertainers and celebrities—due to her father’s work. There are rumours that vampires exist among the student body, and Yui ends up living with the six sadistic Sakamaki vampire brothers.

Hitotose Chitose was always alone and untrusting of people but when 5 female teachers appear and started living together with him in his family’s house as his mothers, things started to change and pick up, together with Hazuki-nee and Minazuki (his 2 sisters) everyday is a lesson

Life goes on for the ladies in the Yamayurikai. On the one-year anniversary of Sachiko and Yumi becoming sisters, Yumi receives a difficult task from Sachiko: to finally acknowledge someone as her younger sister.