No that is the seme's father because that's the seme as a child trying to see his other father.
It was the ex... He's wearing a school uniform
Damn...SO HE A PAPI TO ANOTHER KID!?
No, I think what happened was, ML's omega dad and ML went to bio dad's house to meet the father but what they end up running into is the Bio's dad legitimate son, the MC's ex... I don't think they even met the bio dad at all...
This is just a short flashback when ML was young
In the last chap is the man that out from the car is uke ex?