Hajime Atsuta

Seven stories centered around marriage.

The young daughter of Keizo Tsujiguchi, a respected physician who runs his own hospital, is found murdered. Keizo secretly blames his wife Natsue because he suspects her of having an affair with his colleague Murai, and having been too distracted to keep proper watch over the child. Being a proud man, he does not accuse her directly, but concocts, instead, a twisted revenge against her. Pretending it is to comfort his devastated wife, Keizo arranges for them to adopt a baby girl. What he hasn't told Natsue, is that the baby is the orphaned daughter of the murderer, a tragic day-laborer who has hanged himself while in police custody. He plans to reveal the child's origins after Natsue has given her heart to the child-- when it will cause the greatest possible hurt.

1学期の終業式の午後、小学2年生の美夏は、忘れた絵の具箱を取りに小学校へ行く。そこで美夏は、サッカーボールが取り壊しが決まっていて立ち入り禁止の木造校舎に転がっていく不思議な光景を目撃。ボールを追って木造校舎に入り込んでしまう。妹・美夏の帰りが遅いのを心配した姉の5年生、亜樹も小学校に向かうが、同じ小学校の児童4人と偶然、合流する。やがて一行は夜の木造校舎の中で常識を越えた怪奇体験をしていく。