In the sweltering heat, summer classes were being held in a classroom with no air conditioning. I thought remedial classes were pointless, so I was skipping alone on the bed in the nurse's office. Only Saika-sensei didn't give up on me, a student with no motivation. Gradually, I began to see Saika-sensei as a woman who cared for me deeply. And we crossed the line between teacher and student. The happy time of just the two of us, seeking each other out while sweating profusely during the summer break, could not last long...