Justice in the Dark Episode 21

Luo Wei Zhao brings Pei Su back after he leaves the house and tells him what he saw in the basement. Pei Su explains his hypothesis that the most logical possibility is that he is the "purifier," but Luo Wei Zhao tells him what he believes. The next day, Xiao Han Yang, who had been suspended, came to Luo Wei Zhao to ask if he could return to the investigation, but was turned away. Pei Su calls out to him and they visit the home of Wang Xiao, who had been the target of a group assault at Yufen Academy. Wang Xiao was one of the students who escaped from the academy with Feng Bin. (Source: Japanese = wod.wowow.co.jp || Translation = MyDramaList)