Tsuyuko Amamori is cursed by a rain spirit for a promise her father could not keep. Rain follows her everywhere she goes, including indoors. In order to break the curse, she must find a man who will love her even if it means killing him. Ataru is more than willing to assist her in breaking the curse as long as he gets to date her. The curse was finally lifted when her father played with the rain spirit, as he promised as a child.