Half-naked swimsuit school: The big-breasted slut Kiyomiya is worried about me, the transfer student who keeps getting an erection, so I'll have no problem going to the next class!

This is my first time attending school as I had to change schools due to my parents' circumstances. I was excited when I entered the classroom and found it to be a normal class with a cute girl in it. However, once the opening ceremony was over, everyone started changing into their swimsuits, and I was also made to change into my swimsuit, and classes started in my swimsuit. I can't hold back my erection at the unexpected turn of events and the naughty swimsuit. Mr. Kiyomiya couldn't stand seeing him like that, so he nuzzled me. From that day on, I had an erection during class and had sex during recess, which was the beginning of a naughty and pleasant school life.