Ranmaru Mori

A 450-year-old vampire who sips human blood. Ranmaru Mori, a samurai who served under Oda Nobunaga. Ten years ago, he was being pursued by a certain organization and was rescued by Rihito when he was in a battered state. Since then, he has been working quite happily as a live-in part-timer at "Koi no Yu," Rihito's family home. As a vampire, he is particular about the blood he prefers, considering the blood of "18-year-old virgins" as supreme, and has continued to protect Rihito's chastity until he turns 18. Normally, he only drinks the blood of villains, aiming to coexist with humans, but Rihito is too attractive, and he is pretty much at his limit.