Omamori Himari 4

[Ryuumaru] subs: After losing his last relatives Amakawa Yuuto lives with his childhood friend Rinko, his only problem being his allergy to cats. Until on his 16th birthday a girl with a sword appears, telling him that he is the descendant of a family of demon slayers and that she is a spirit sworn to protect him. Bad luck for Yuuto, since she is a cat spirit and eager to get close to him very close.