Maeda Kanako plays Ami, a married woman whose life takes a dramatic turn when her brother-in-law, Ryoji, comes to stay at her home with her husband for a month while attending a cram school intensive course. This event exposes the secret physical relationship that has actually been ongoing between Ami and Ryoji for the past year. Tasked by her husband with taking care of Ryoji, Ami finds herself drawn deeper into emotional and physical entanglement. Though she feels a maternal warmth toward her brother-in-law, she cannot bring herself to end their affair, and their forbidden relationship continues. Directed by Nagira Kanzo, this NTR (cuckold) drama explores the temptation and inner conflict of a married woman torn between duty and desire.