Ive been suspicious about the cops but I think I can understand why they're willing to take orders from a random civilian like Hobin. I think its cause they're under orders of Assemblyman Yong Hwang. I guess even in prison he still can do some help. And at least this would explain how Wangguk is able to get out of being a suspect even tho he's the one who literally blew up the place.
Haesu playing mind games huh. He's always curious and odd. makes me really interested what he's really after.
Also Peng Ao Wei will probably be on our side this time. he may be looking for help to get his gang out of prison and thats why Hobin called him in. I also had the feeling Peng would be the friendliest out of all of the scholar students. due to his interesting personality back in that cram school