After the murder of his brother, Kamata still carries the bloody hammer with him. By chance, in a deserted little park, he meets Shouko, who has just stabbed an annoying fellow student with a knife. In an unexciting conversation about their motives and concerns, the two killers discover an unexpected affection.

After the murder of his brother, Kamata still carries the bloody hammer with him. By chance, in a deserted little park, he meets Shouko, who has just stabbed an annoying fellow student with a knife. In an unexciting conversation about their motives and concerns, the two killers discover an unexpected affection.