**Chapter 53 and 54 gives us a insight on how Yoo Hajin and Baek Hayeon were born
Our mc is actually the younger brother (his real name is actually Baek Hayeon) which means he was the one abandoned with his maternal family members or whatever which is why he had a busan accent meanwhile the older brother (his actual name is Yoo Hajin)was born first and was taken to England (I'm assuming during the whole succession issue) "after he was born" which is why the secretary only met the main character at 5 (the dad brought the main character back home and decided his new name would be YOO HAJIN **don't remember which chapter but YHJ said his name was Baek Hayeon once he saw his dad again** once the succession issue was solved and said that he would be the heir) and not the oldest son who was most likely still in England at the time
why they switched their ages and names I have no idea thinking about it now the older brother should have been in college and YHJ should have technically been in highschool but since the main character was actually in college this is just another question that needs to be answered but we also have to remember that one of the sons was sick which im thinking is the older son and maybe that's why the dad decided to bring YHJ back to the house instead of the older son in the end the mom was talking about how the older son looked so much different from the second maybe that's another reason why the Dad chose to switch their life around he wanted a son that actually looks likes him
As for the dad it's obvious he treated the mc like shit because he was a "troublemaker" once seonwoo exposed all the good things he's been doing and how half of the articles that came out about him were false or made up shit by the best friend his wife and other son he probably saw the mc in a new light also he probably woke up once he figured out that this whole situation was getting out of hand especially with the wife like sure framing your son is one thing but wanting to kill him is just preposterous

Overall, not bad. I liked how MC held his own and wasn't too swayed by the others. I do wish they addressed the following:
- How and why he isekaid into the webtoon
- Why he looked like the MC of the webtoon. It seemed like there was something further about it, depending on how they said the college was also based off it.
- He cared about his OG parents up until like chapter 20 then stopped??
- How did they switch 2 boys and their ages?
- Why did dad suddenly become chill after not caring for like 65 chapters