im bored, i wanna see hajin's brother or another side couple

Me too. At this point the main couple are boring. They got together, yay! now I wanna see hajin's brother's story and the blond one's (sorry idk how to spell his name). But now we have to wait until the author is done with jaehyuk, which you know will take 10 chapters even tho hajin can just tell him to f#ck off and get it done with.