Maria worries about her husband losing his job due to his gambling addiction. - In order to get back on his feet, he enlists the help of his father-in-law, Ginji, and the two households begin living together, but... - Maria begins to lose confidence due to her husband's lack of desire to change. - However, she is saved by Ginji's kindness, and before she knows it, she begins to feel more than just parent-child feelings for him. - The relationship between the two, who have crossed the line, rapidly approaches each other, and their behavior escalates day by day...