
They were not basically father and son. They knew each other for a month or two. Abel never treated Karas as his son or even younger brother, Abel always saw him as the crown prince, and protected him as his Regas. Same goes with Karas, he never treated Abel as a father figure or an older brother, he always saw him as his Regas, then and now.

Well it's psychology my friend and it's full fledge fact that a child does feel attraction to their opposite gender care taker which for most people is parent. So I think they had used this fact here. Also ALL the regas in this novel and manhwa had lean and small body so it's not Abel who looks like that.
Am I the only one who cares that they were basically father and son and now they’re lovers??? Also Abel’s new body literally looks like a child… I still like the story but ts is so weird to me