A secret promise with his younger sister, made to live a life of only kissing. "Just kissing...because we're siblings..." He should have promised his grown-up sister only kissing, but he couldn't resist... A long-awaited return to his hometown... 2 HUNTC-487

When I lived with my sister, we were actually in a romantic relationship, but it was a mistake. I felt that if we went any deeper, things would get worse… so I fled my hometown, and that dangerous relationship broke down. However, years later, I returned home to find my sister even more adorable than before. Our repressed emotions surged up, and we desperately tried to rekindle our old relationship, intending to end it with just kissing. But that one kiss set time flowing again. As if trying to fill the void left by our past, we craved each other intensely. Our increased sexual knowledge and physical abilities allowed us to engage in a different kind of real sex, bringing the most intense physical pleasure and pulling us into a forbidden quagmire. A pure yet insane, dangerous sibling relationship has begun once more.