Responses
That's Dojin's brother I think. He tried to use his Alpha phermones on Heeso but since Heeso is a beta, it didn't work. And Heeso left and thought how uncomfortable it always is to be around alphas.
That dojin's brother already appear in previous chapters around c1 to c5
I don't remember who that guy was (the one Heesoo borrowed money from) But if he's single, then this might be our second couple of this story.
Also, I am glad that the hatred between Heesoo and Hyesung is over, but now we need to clear up the misunderstandings between Hyesung and Dojin, atleast for Byul's sake!!!