My best friend Rin Natsuki has always been there for me when I needed her help. Even though she was my first girlfriend, I couldn't even kiss her properly due to being such a shy guy. Feeling sorry for me, Rin suggested that we practice together. We started off with French kisses and worked our way up to deep kisses. As we got more comfortable with each other, the sensation of our tongues dancing became irresistible. One day, after hours of passionate kissing, I couldn't control myself anymore and proposed having sexual intercourse. It all happened so naturally that neither of us could resist any longer. Since then, every time we see each other, we can't help but remember the intimate moments we shared through those intense kisses...