Twelve years had passed since their marriage, and the season was shifting from summer to autumn. Her husband had been promoted at work, becoming assistant manager in the personnel department. However, to secure his position, he was assigned to carry out staff reductions and ended up laying off his colleague, Kimura. This decision sparked intense resentment in Kimura toward her husband, driving him to take actions that threatened their family. The household that had once been happy began to crumble in an instant.