
I think his story is just a reminder to us that no matter what happens teenage pregnancy can never do good things towards us
And yes hyesung is still a teen he is only 20 when he got pregnant.
I ALSO DIDN'T FIND MISTAKE IN THIS MANHWA MAYBE THE MISTAKE IS THAT WE PEOPLE PUT HUMAN QUALITIES TOWARDS 2D CHARACTERS

I don't think you realize that it's not an act of homophobia or feminizing men. Hyesung is filling in the role of the caretaker, nurturer and birther of Byul. The literal definition of a mother is to give birth to or to raise and show affection towards children. Being a mother is a role, if it's biological or not
To be honest I don't like this. How could a mother just leave his/her child? Even just a little while (for a fucking months!) and planned to leave the fucking country?! For fuck sake! It's your responsibility too, not just the father... No matter who was at fault BOTH of you is responsible... Leaving is just a coward way, whatever the circumstances may be... THIS is wrong in whatever levels.