It's hard to believe anything when your whole life has been a lie. Things take a turn for the worst when sixteen-year-old Mari is thrown into the Sakamaki's lives. Dark secrets of the past will be revealed, and even her sanity questioned at times—but will she live through it? Or will the truth prove too much for her to handle?

Ayato accidentally invites the whole of Ryoutei Academy to a party at the Sakamaki mansion, but what could possibly go wrong? Certainly a lot when alcohol and all ten vampires are thrown into the mix.