A married nurse named Kanna Misaki, two years older than her husband, has been living happily ever after their marriage. However, she feels uneasy about one thing - her stepson Taichi. After graduating from college, he joined an IT company but quit due to his workplace being a black corporation. Nowadays, he stays at home... As a mother, she can't help feeling that she isn't doing enough for him. Suddenly, a young and beautiful woman moves in; she's close in age to Kanna and even more attractive. She got hired thanks to Taichi's job referral and starts giving him advice which makes Kanna feel irritated and aroused. The situation escalates when they end up having passionate sex together. Note: The contents may vary depending on the distribution method.
