Omamori Himari - S01

After his parents die, Yuuto Amakawa lives a pretty ordinary life in the city. The only thing he really has to worry about while going to school with Rinko, his next-door neighbor, is his cat allergies. That all changes on his sixteenth birthday, when an Ayakashi, a supernatural creature, attacks him for the sins of his ancestors. He is saved by Himari, a mysterious cat-woman with a sword, who explains that Yuuto is the heir of a family of demon-slayers, and she is there to protect him now that the charm that kept him hidden from the supernatural forces of the world has lost its power. Omamori Himari follows Yuuto's dealings with the various forces of the supernatural world, as well as the growing number of women who show up on his doorstep, each with their own dark desires. Will Yuuto be able to adjust to his new "exciting" environment? Or will the ghost of his ancestor's past catch up with him?