Maria is troubled by her husband, who lost his job due to gambling addiction. She tries to help him get back on track and asks for the cooperation of her father-in-law, Ginji, starting a two-household cohabitation... However, Maria nearly loses her confidence due to her husband's lack of improvement. But saved by Ginji's kindness, she begins to feel more than just parental affection towards him. The relationship between the two, having crossed a line, rapidly intensifies, and their actions escalate day by day...
