Ke Lin was taken aback by Meng Xing's sudden change in expression. The atmosphere just now was good, and their conversation was even light-hearted as they could joke around. However, it suddenly became tense. Ke Lin could guess that Meng Xing was provoked by something. He could feel it just from the aura that Meng Xing was releasing. Despite Meng Xing's expression that couldn't be read partly due to the veil that was covering his face, Ke Lin knows that Meng Xing's mood is not good just looking at his eyes where his pupils darkened, which is likely due to anger.
"And that is?" Ke Lin asked as he took a deep breath, suddenly feeling nervous. He gets along well with Meng Xing so he knows how good Meng Xing is, as well as how bad he can be, like right now, when he is angry. Thus, he doesn't want to offend him or test his patience toward him.