Okay so I went back to the prequel when you mentioned incest, and NO to answer your question. As far as I can tell, Byul’s actual dad actually had an affair and he left Byul and his mom for the other family, we never see them. But the dad always giving Byul’s mom false hope that he will be back for them, in truth he would never gave up his other family. Hyuntae’s is not the other son of Byul’s dad. My guess is Hyuntae aware of Byul’s family problems and he told everything to the dad so the dad could prevent Byul and his mom to move.
Hyuntae is indeed quite crazy back then, but I don’t think he’s THAT crazy now. He’s still quite possessive, BIG YES. if he’s still crazy as he was in high school, he would took advantage of Byul who was in heat and claim him when he had the chance. Just saying.
If I remember correctly, it was never explicitly mentioned if Hyeontae and Byul are “biological” step brothers. We just know, that Byul’s biological father had already been married to Hyeontae’s mother, before he even cheated with Byul’s mother. That was also the reason, why Byul’s mother tried so hard to keep it hidden from Hyeontae’s aunt.
Then the question is, had Hyeontae’s mother already had him before marrying Byul’s dad? Either, Byul’s dad is a proud alpha and would never marry someone, who already has a child or Hyeontae’s mother is from “higher” class and the only reason he was able to marry her is exactly because she already had a child, i.e. her value “dropped”. The latter would make more sense, if he didn’t want to get a divorce. So, going with that logic, they should be step brothers on “paper” only.
On the other hand, it looks like both Byul and Hyeontae are that beta guy step brothers as he has born a bit later.
Can someone explain wtf happened who is the end guy because the characters stop looking similar…….. can someone give a well written explanation to what the ending is