Responses

Considering this should be korean age system, in the international one they would be either 25/26 based on the point of time and graduated school at 18 (20 in korean age system). Meaning the children were born when they were around 20 and conceived when they were 19.
Still childish for 25 year-olds, but I guess it's just his arrogant selfish character. I hope he falls harder hahaha
Ain't no way this is our MC. Bros fucking 27 and childish as helllll omg grow up and stop being a dickhead