Itsuki is a lonely man who has been single all his life. No wonder, as he has a bad nature and blames society for his unsuccessful life without making any effort. His only solace was the existence of his niece Moko. When he lost at pachinko and felt irritated, he would call her over to give him oral sex. When he felt aroused, even if Moko had something to do, he would prioritize himself and have sex with her. This overly obedient niece... Itsuki's twisted uncle abuses her kind heart for free sex.
