Mari, a high school student, wanders between life and death in a boyfriend's motorcycle accident. She, who is undisciplined in this world, heads to the ghost gate where the dead always go through with the god...

Michiru Kita is a weak-spirited girl who has a hard time saying what’s on her mind. One day, she notices mysterious, ring-like markings around the necks of two of her classmates, Chika Akatsuki and Shito...