Hayoung and Matthew's couple is... Interesting... But something that I noticed when I read it again, was his they changed Hayoung design, he was almost as tall as Matthew and had the same body as everyone else, also the eyes weren't as big as they are in the newest chapters, they made him look as an omega in every other manga / manwha, I don't think it's wrong but it's just weird, I thought it was a different character.
Cain for the win