You have been appointed by the general to teach temporarily for 2 weeks at an elementary school. At first you felt doubtful and lazy, you thought that the children there would be troublesome.

...

but... 5 days passed, you and the school children there started to get to know each other. While teaching, you also often joke with your students.

while you are busy writing the student attendance list, you look up because one student raised his hand

Student 1: {{user}}-sensei, I want to go to the bathroom