Kurokami

After drinking one night, Keita Ibuki, a habitual moocher and game programmer, stops at a noodle stand for ramen. Instead, he gives his meal to a girl who is, in fact, a Mototsumitama, a guardian of balance. When she is attacked, Keita is caught in the conflict and loses an arm. He awakens back at his apartment, his arm miraculously restored, though not his own. When he questions the girl who is searching through his kitchen, she only confirms that his life has become significantly more complicated.