I grew up in a single-mother household, so I secretly work at a factory while attending school. I didn't have time to go to cram school, I was behind in my studies, and I was avoided by my classmates. I admired the beautiful and kind Mizuhara teacher. Then, in the summer of my third year, after school alone with Mr. Mizuhara, I suddenly approached him. In the afternoon when the heat wave continued, after class ended, we secretly asked each other all over the school, covered in sweat. At that time, I thought that such happy days would last forever...