KSWP-004: 完成原始交换 04 内在阴道注射交换！ Yui，一位第一次体验交换的托儿所老师，因为她经常邀请自己和Satomi，一个嫉妒公司老板的丰满OL，他希望与一个年轻女孩发生性关系，所以她想改变自己的陈规陋习关系

Complete raw swapping 04 Intrinsic vaginal shot swapping! Yui, a nursery teacher who has her first experience of swapping and wants to change her rut relationship because she often invites herself & Satomi, a busty OL who is jealous of the boss of the company who expects sex with a young girl