Hearing the middle-aged doctor's shout, the boys in Class 37 hurried to the tin house.

Inside, the middle-aged doctor locked the iron door back, and the grim face looked at the boys one by one. "Next, listen to my instructions, take off!" Suddenly, he shouted out without any preparation. It was very frightening.

At the command, all the boys started to act. Soon every boy was naked.

"Don't look at anyone else, just stare at me!" The middle-aged doctor snorted. It is also reasonable for him to do so. The boys in Senior Three have almost developed. They should have all. It is not good to see others, to have...