The Scum Is Obnoxious 

"'killing intent'?" they exclaimed after they heard what Cheng Sheng told them. 

"En." Cheng Sheng nodded. "Da shixiong and I have been running all over the place since I felt a killing intent directed to me. And as we neared this place, the killing intent subsided until is disappeared. We have been hiding here since then, and then heard from the other side of the wall the Zunjingde Sect arriving with Qian Lin. Then, your group arrived not long after…" he explained. 

"So you didn't appear earlier because you think that it might be the other contestants wanting to kill you?" Chen Han asked. 

"En." Cheng Sheng nodded. "I am obnoxious enough to warrant their killing intent." He said in a casual tone. 

Chen Han and the others. "…" so, you are self-aware…