When Yuichi tried to hand a bar of soap to his mother, Kaori, while she was bathing, he unexpectedly witnessed her naked body. She's so erotic... Captivated by the incredibly bewitching sight, Yuichi realized that a forbidden desire existed within him. It's crazy to be horny for his own mother. No matter how much he tried to tell himself otherwise, his mother's naked body was vividly burned into his mind and wouldn't leave, causing him to get an erection every time he remembered it. And finally, Yuichi could no longer suppress his feelings...