Ijin is badass. And for those of you hoping that Yuna doesn't become a love interest... I don't understand the problem except that you're maybe jealous of Ijin. I don't think she will because Ijin probably won't reciprocate, but I don't mind if she becomes a love interest or just an admirer. At this point, hopefully Ijin's gained Yuna and Sukjoo's respect and that they don't try to separate Ijin from Dayun. Maybe now they know he's a badass but still cares for Dayun, they don't have problems here.