Du Xiaoya, an ordinary high school girl; Gideon, a veteran purebred vampire. These two people who are incompatible with each other have an extraordinary relationship - roommates! However, Du Xiaoya slept in the bedroom as a child, and Earl Gideon could only condescend to sleep in the basement. However, fresh virgin blood, heated bat stems, dark basements, and large coffins made of solid wood are all the Earl's favorites. Life would be considered peaceful if it were such a noisy life, but the appearance of a pair of demon binder siblings broke the peace, and Xiaoya's originally comfortable life was disturbed. This novel tells several independent stories, and each story is closely connected.