HUNTC-246 A promised life of just kissing my sister, hiding from her parents. Just kissing...it's a sibling... It was supposed to be a promise to just kiss her grown-up sister, but I couldn't hold back... When I went back after a long time...

When I went back home for the first time in a while, what awaited me was my younger sister, who I used to be in love with. The past was when I lived like a lover. I struggled with the forbidden relationship between my brother and sister and ran away from it. When I returned home, I kissed my younger sister, who had grown up and became even more beautiful, for the first time in five years with a promise to kiss only. However, that alone doesn't stop, and I can't resist the gradually intertwining kiss