Immortal

Ogichi Shirosaki was cursed hundreds of years ago by his love to walk among mortals forever, undying until his lover has forgiven him. Years later, he was hired to protect a young man named Ichigo Kurosaki. A dark force is after Ichigo, one Shirosaki recognizes. Can he kill the monster after Ichigo, and can Ichigo free Shiro from his curse? HichiIchi naturally !