When an accident suddenly claims Chiaki's life, his best friend Sousuke is left to wallow in grief and regret. While on his way home, Sousuke walks over a railway crossing exactly on twilight and finds himself in the Afterlife, where he finds Chiaki's spirit. Determined to be reunited with and resurrect Chiaki, Sousuke makes a wager with the Afterlife ruler, Lord Nushi. Will he succeed?