...
Xu Shu draped his arm around Cheng Zhu's shoulder, the two huddled over Cheng Zhu's phone, engrossed in something or other. Their pace was slow as they descended the stairs, chatting and laughing as they went.
Seeing the two stop every other step, Jiang Su was vexed. "Hurry up."
Xu Shu and Cheng Zhu looked up, startled by Jiang Su who stood directly opposite them on the staircase, casually leaning against the railing.
Xu Shu quickly dashed down the stairs, looking around, "Huh? Where's my front-desk mate?"
Jiang Su: "..."
Left alone on the stairs, Cheng Zhu nonchalantly put his phone into his pocket and descended one step at a time, "Why didn't you go home with your front-desk mate today?"
Jiang Su: "..."
Jiang Su, irritated by the two in front of him, lost his patience, "Why do you guys talk so much unnecessary crap?"
Cheng Zhu: "..."
Xu Shu: "..."
What did they say to warrant such annoyances?
