Babanba Banban Vampire

450-year-old vampire Ranmaru Mori is "laying low" at the esteemed Koi No Yu Bathhouse, working as an attendant there. Naïve Rihito Tatsuno—the bathhouse's heir and also a fifteen-year-old virgin—has stolen Ranmaru's heart, and the old vampire is just waiting for Rihito to turn eighteen before he feasts and possibly turns the young man!