99-я принцесса-вампир

Starving high school student Tsukumo Jin accidentally uncovered the most powerful and well-known "vampire legend," and now serves as a butler (and lover) to Sylvia, a vampire princess who chooses to take the form of a young girl. Jin's task is to save his beloved younger sister Shigure from the urban legend of a "solo hide-and-seek game" with the help of the mysterious transfer student Ayase. This marks the beginning of a battle against the "last vampire," a mysterious being orchestrating these events.