"I don't really like an aunt, right?" It's been three months since my son Satoshi brought Tetsuo home. Ayako knew that Tetsuo's true purpose was not to play with her son, but to herself, and she couldn't hide her upset. No way young people who are as old as their parents are interested in themselves ... However, Tetsuo's desire to escalate day by day finally surpasses Ayako's speculation and begins to aim at her ripe body.