Mari Ai, a mother-in-law who renewed her swimsuit before summer. When I was standing in front of the mirror and doing a swimsuit fashion show, I felt like I was running. Mari Ai notices Haruto's appearance, which is completely admired by her glamorous body and racy bikini, and demands an oil massage with a mischievous heart. The plump, lustrous and stimulating body of my mother-in-law that I touched for the first time ... The caress of Haruto, who clearly deviated from the level of massage, made the breathing of truth love rough, and finally the two crossed the line between parents and children.