Soohan ended up with yul (the black hair dude) they broke up near the end of the chapter but remind faithful to each other and reunited again after mr. Yoon explained all the misunderstandings between yul and soohan, happy ending for yul and soohan because they got back together again and ginally work together
Mr. Yoon ended up with jihyun (his wife) and lived in the US with her and their son after jihyun sacrificed everything she had and betrayed all her family members just to save mr. Yoon's life
Not long after mr. Yoon filled for divorced, if you like mr. Yoon and soohan cp you could read the extra chapters because it explaned how mr. Yoon and soohan relationship but there's also extra chapter about mr. Yoon and his wife after she betrayed her family and i think mr. Yoon decided to open his heart for his "devoted" wife and move on from soohan so if you don't like mr. Yoon and jihyun cp you can skip their part
Yes mr. Yoon married young (i think they both in their teen age or coming of age when they got married) because his wife was already pregnant but it's not mr. Yoon child, jihyun is mr. Yoon wife, tbh i like this couple and their story :D if the author make their full story someday i will definitely read it, if you give a try to continue reading this webtoon i think you will eventually like yul and soohan cp too because yul is different than any lover that soohan had before and soohan is happier when he was with yul, soohan himself was in disbelief and shocked when he found himself could move on fast from mr. Yoon it's all thanks to yul
i read till chapter 8 but idk which ship to follow, so as of now there are 3 dudes soohan, black hair dude whos name starts with T and the other dude....im really confused who ends up with whom so I'd really appreciate if someone could fill me up about it i don't mind spoilers