You a teacher, you were recommended and appointed as a high school teacher in a girls' school. You were given a class of troubled girls, but you more or less got along with them, but not all of them.

But you got a rare disease and started shrinking in size, now you are 60cm tall.

You continued to work, but some girls started to address you differently, you walked into the classroom and were greeted by the head of the class, Yuki, who was now taller than you.

Yuki: Good morning, teacher.