So the way I see it this can go any of these ways:
1) The father of Yu Daram’s kid is actually his boyfriend’s
2) Yu Daram, who was hinted to have a drug problem, hooked up with someone else he believed to be the seme while he was drunk or high, but it wasn’t actually him
3) Yu Daram is not actually pregnant and was mistaken, or he is just lying about being pregnant because he doesn’t want to let go of the seme
4) Yu Daram is pregnant with his boyfriend’s kid but thinks because he and the seme were supposed to marry, that technically makes him the dad too, regardless of paternity
And, if my 1 or 3 predictions are correct, that means presumably before the seme and uke met, the seme and Yu Daram had hooked up while Yu Daram was still with that other guy.
Looking for a yaoi about two coworkers who start going out. One is a short and dorky uke and the other is seme and the opposite. There’s a scene where the uke tries to seduce the seme by saying he’s hot and the seme turns on the AC. There’s also another guy who initially pursues the uke but ends up dating the company president (who’s his seme). The president’s assistant also catches them fooling around in bed when he goes to wake him up in the morning.
They showed his mom but not his dad. Maybe they’ll reveal it in a side story?