The murder of a young girl leaves the inhabitants of a small Japanese village in shock. The body of Emili is found by four classmates with whom she was playing. The murder is never solved. Emili's mother, Asako, is torn by grief and puts a curse on the four girls when they claim not to remember the killer's face. Each of the girls, in their own way, will do penance for their silence.

Penance

New student Kanji transfers to 6th grade 2 class, where Ayami Mutoi works as the homeroom teacher. Students begin to talk among themselves that they have seen new transfer student Kanji in a dream. Yuiko Koto also had a night mare. In her nightmare, a boy that looks transfer student Kanji appeared as a prince. Ayami Mutoi tries to keep that to herself. She actually likes the prince in her dream.