I grew up in a single-parent household, and while attending school, I secretly worked at a factory. I didn't have time to go to cram school, so I was behind in my studies and my classmates avoided me, but Ms. Mizuhara treated me kindly. I admired the beautiful and kind Ms. Mizuhara. Then, in the summer of my third year, we suddenly became close after school when we were alone together. On a scorching hot afternoon, after class, we were covered in sweat and secretly made love to each other all over the school. At that time, I thought that these happy days would last forever...