Kotone Fuyuai was raised by her father since childhood, and that relationship continues to this day. While sharing deep affection with her husband, she leads a strange and complicated life. One day, she discovers her husband's infidelity, pushing her love and possessiveness to the absolute limit. Driven to the edge, she snaps and begins disciplining her husband. Filled with the fierce conviction that "I'll never ever forgive cheating!", a new chapter begins.