Vampire Princess Miyu S01 E20 Butterfly Enchantment

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.