Boku to Ayakashi no 365 Nichi

"One year of living with him..." Young Miharu is born into a family that had purified Ayakashi for generations. But Miharu can't handle the supernatural and even lacks the sense and powers to purify Ayakashi. His grandfather, the one and only close family he has, passes away, leaving Miharu to fend for himself against not just the cruel Ayakashi that torture him, but also the neglectful relatives who want nothing to do with him. One day, a human-hating, rude, and rough demon called Kochi appears. Shot with a cursed arrow on his back, Kochi is here for Miharu, who is the key to relieving him from his curse. But to his surprise, Miharu also reveals that he, too, is cursed... (Source: TOKYOPOP)