Yui Kisaragi loses her keys and can't get into her house, but she has to wait at an uncle's house in the neighborhood until her boyfriend comes home! When you tell your uncle that you haven't had sex lately, he suspects that you have frigidity, and for some reason you decide to have him check your sexual sensitivity? ! It starts with a quick body touch, and before you know it, the old man's hard fingers are inside your vagina! Yui even gets cunnilingus! In the end, I was persuaded by the erotic old man, and in the end, he even creampied me! Oh, it looks like he's back, I need to hurry home lol