Synopsis：Wataru Watarase secretly has a crush on his clubmate Hime Akatsuki, but one night he discovers her terrifying secret—she’s actually a bloodthirsty vampire. After witnessing her drain a friend’s blood to death, he’s forced to choose: “offer his blood to Hime forever” or “die on the spot.” Wataru begs her to postpone his decision until the end of summer vacation, and so begins the strangest and most dangerous summer of his life. In the end, will he become her eternal blood servant, or face final annihilation?