In the classroom after school, I secretly exchanged my favorite girl's recorder with mine and enjoyed an [indirect kiss] when, unexpectedly, she appeared! For some reason, we end up practicing together... But it's her recorder that I'm playing. And what she's playing is my recorder.

I secretly replace my favorite child's recorder and play it. This act is a thin line between pervert and love. However, due to a slight mistake, they end up playing the replaced recorder in front of each other. Yes, of course I'll get an erection. If it's such an exciting development. But when the girl realizes this, things become even more difficult. That's how I get excited! I can't overcome my erotic curiosity.