Bringing to life the shocking mother-son incest series 1 & 2 from the popular doujin circle "house-teiru"! Mom's adorable smile, her voluptuous body... Ah, Mom, why are you so cute?! Yuuichi, the son, is driven wild by his incredibly attractive mother, Yumiko. Finally, his desires explode when his father goes on a business trip... He takes advantage of his sleeping mother's body at night, even going as far as forbidden penetration! Although his mother wakes up and desperately tries to stop him, she's begged by her adorable son, "It has to be you, Mom!"