"Oh, I'm going to be late. I almost forgot that I'm going to have an exam today..." In the early morning, the sound of Lu Mengzhu shouting and whistling came from his bedroom.

Ye Cheng was immediately woken up by shouts and comforted, "Don't worry, what time are you going to take the exam?"

Lu Mengzhu rushed to the bathroom in a hurry. "Eight o'clock!"

Ye Cheng took out his cell phone and looked at it at 7:30. "Half an hour, enough time!" He also got up in a hurry and rushed into his bedroom to change his clothes.

After going to the toilet, Lu Mengzhu washed his face indiscriminately...