The story takes place at Reidei Academy. Komori Yui (voiced by Suemon Satoshi) is a transfer student who has just transferred to this school. In addition to having a supernatural physique that can see ghosts, she is no different from all the female high school students of the same age. By chance, Xiao Wei and the mysterious six brothers of the Sakamaki family became roommates. However, what shocked Xiao Wei was that the Sakamaki family turned out to be a vampire family with a century-old origin. Ayato (voiced by Midorikawa Hikaru), who has a weird and lively personality, Kanato (voiced by Kaji Yuki), who looks cute but is not consistent with his appearance, Reito (voiced by Hirakawa Daisuke), who is super poisonous and twisted, and perverted, Shu (voiced by Toriumi Hirosuke), who loves music but has no motivation, Reiji (voiced by Konishi Katsuyuki), who follows the rules and is polite, and Subaru (voiced by Kondo Takashi), who does his own thing and is taciturn. Can Xiao Wei, who is "persecuted" by the six brothers every day, really cope with it?