When I met my teacher again after nine years, she was just as pretty and kind as before. The moment I saw her by chance in my hometown... the memories of my first love came back to me all at once. When I was a high school student, I had a little crush on my older sister's tutor, An. I was still a child then... I couldn't do anything about it so I put my feelings for the teacher away. But now it's different! I'm not a child anymore. I want to know more about An, both in Kokoro and in my body.