"Hello... Kenta-kun." Mayu is my mother's friend... and the woman I've been longing for. There's no way a kid like me could ever be with her. Besides, she definitely has a boyfriend. But every time I see those big breasts of hers... I can't hold back these feelings anymore. A young man who harbors a crush on his mother's beautiful friend falls into a secret physical relationship by chance. What began as a relationship he had resigned himself to as impossible gradually pulls him deeper into pure pleasure. A drama depicting the thrill and sensuality of a forbidden affair.