After finishing the cake, Cheng Zhu paid the bill, and the four of them returned to school.
Cheng Zhu and Xu Shu separated from Jiang Su and Lin Wei on the second floor. The two of them, tall and long-legged, climbed up three steps at a time and quickly reached the third floor.
It was still early for evening self-study, and many people were hanging out in the corridor.
As they passed the doorway of the class 2-2, Jiang Su suddenly asked, "Why didn't you tell me it was your birthday?"
Lin Wei uttered an "ah", and after a long pause, she replied, "Since I don't celebrate my birthday, I didn't think it was necessary."
Some jokers in the back had the corridor echoing with their laughter. Accustomed to the lively atmosphere during break, Jiang Su found it a bit noisy. He took a couple of steps forward and pulled out his headphones.
