A 16 year old, Kiyotenshi Asuka, has lost her beloved mother 12 years ago, making her parents die 2 years apart on the same day. After these tragic incidents, Asuka saw a lantern and a meteor hurtling towards her at a high speed. Unable to escape, she inevitably died and continued through life as a ghost. Later, during her after-life, Asuka met a friend named Kurosaki Himeko who is a benevolent witch. Asuka and Himeko then leave on a journey to help Asuka regain her humanity.