I had secretly been in love with my girlfriend's older sister for a long time. But as someone who never stood a chance, I knew she'd never notice me. Then one day, I overheard a rumor that shook me to the core—Hina would turn into a kissing maniac whenever she drank alcohol. The thought of finally kissing her became unbearable. So I started dating her younger sister. When I visited their house, I unexpectedly came face to face with the big-titted, adorable woman I'd always desired. She was already tipsy. "Kissing makes me even more drunk," she whispered, pressing her breasts against me as our lips met. The rumor was true. In that instant, my heart belonged entirely to her.