sentences:  It focuses on a pessimistic, heartbroken teenager who makes a pact with a lonely ghost, unknowingly exchanging her life for two wishes.Chasing down spirits that have escaped from the demon door, Raven and Tokage rescue her from the ghost, a young girl who died suddenly, and seal a spirit which feeds on negative emotions.Yuki wrote the story as a reminder to herself not to be so pessimistic, a trait she shares with the teenage protagonist.