[Machine Translation] Fuyuyou Tsujimine suddenly finds herself living with her cousins. Moreover, they have a secret. It seems that their ancestor was a witch, and they have been collecting 99 antiques <witch's legacy> that were given to them by the witch. However, Fuyuyoru accidentally awakens the witchcraft "Blue Hearse," which belonged to them. For some reason, she takes the form of a girl and says, "You are my owner, and you are my servant. And you are my servant.