Ayumi married a divorced man with a child, who is two years her senior. She was living a blissful married life, but there was one worry. It was her stepson, Koudai. He was going through a rebellious phase, had dropped out of school, and was aimlessly drifting. Determined to be a good mother, she invited a young and beautiful woman, closer in age to her husband, into their previously emotionless home. This woman, however, meddled and lectured, driving Ayumi to the brink of frustration and unleashing her pent-up sexual desire...
