Des:Itsuki is a lonely man who has been single all his life. Thats no wonder; he has lived his life without making any effort, blaming his bad nature for his life not going well. However, his only comfort was his niece. When he loses at pachinko and gets horny, he calls him and gives him a blow job, and when he gets horny, even though Moko has something to do, he calls her and tells her to prioritize him and they have sex. The sex life of a twisted scum uncle who takes advantage of the loving heart of his overly obedient niece... to fuck her for free.