"Uncle, let's get married when she grows up." The innocent girl grows up as time passes... and consists of three parts, where memories of her niece change from childhood, rebellious, and mature! ! After a period in which the girl who treated her cock like a toy makes her smelly, dirty and rude, she becomes like an adolescent romantic feelings... and experiences the changing niece's response in real life! It's time to finally have sex with my niece, who has been watching her grow up slowly! !