Plot Summary

If you like Ai Hoshina, who has a small and small nipple, she will show you her nipples and become a ridiculously erotic sister who lives under the same roof. As a bonus, I'm just asking you to take a look, and I'll show you masturbation by tinkering with nipples! My sister Kon's companion. For now, let's just throw it at MY SISTER Ai's nipples as our desires go!