The episode in which teenager Lin and Deng quilt in the dormitory and are scolded by the dormitory administrator.

Lin and Deng are hiding under the covers, watching their mobile phones and eating snacks. Teacher Wang suddenly opened the bed, and Lin quickly hid his mobile phone, but in the end he was punished for cleaning the toilet. Lin and Deng painfully swept the toilet, fearing that Miss Wang would check them out, so they specially drew cartoons on the toilet door and refused their inspection in the name of wet paint. Although Mr. Wang was cheated, Lin and Deng got new jobs. Mr. Wang asked them to draw cartoons on the toilets in the whole building.