
S01E01 The Fang Knows It
A schoolgirl is found dead by a fellow student. He notices two teeth marks on her neck and sees another girl fleeing the scene. He convinces himself that the killer is obviously a vampire and...
A butterfly leads Miyu to a girl named Ruri Sone, whose father Hiroshi confines himself to a large hothouse during the night, after a fire incident on the premises. Ruri is worried about her father becoming increasingly introverted, but Miyu detects the scent of the Shinma in the hothouse full of beautiful butterflies.
Miyu, a vampire girl, acts as a guardian, sending stray demons known as Shinma back to the darkness while publicly posing as a high school student.