Yuri has her first kiss on May 23rd, Kiss Day.

It's been a while since Valentine's Day when I became lovers with Kama-chan. I had forcefully begged her to be my lover, and I didn't even think she held the same feelings for me. But it's been about three months. I wondered if Kama-chan might be starting to feel something too, so I suggested we kiss. But she refused, saying she didn't know what to do if we kissed and felt nothing. So I promised to kiss on Kiss Day, May 23rd. On that day, I still don't know what will happen to my relationship with Kama-chan. High school classmates. Yuri.