On the first day, the girls chatted with each other in the dormitory and got to know Zheng Dan, who was cheerful, and Lv Zihan, who was introverted and delicate.

"At seven o'clock tomorrow, we'll have a class meeting. It's already past eleven o'clock. I'll go to sleep now." Zheng Dan stopped chatting and fell asleep after browsing on her mobile phone for a while.

Mengmeng was lying on the bed, unable to fall asleep.

"I need to go to the ...