I didnt expect Dojin being the strict dad LMAO

Base from the experience I guess?? And the personalities byul has

More than strict he seems more of a very possesive and protective parent, and it makes sense after seeing all he went through with Hyesung. He was always wanted to protect/control Hyesung when he was pregnanr and Hyesung tried to run away more than once and got away for a time so it is not weird for him to be Helicopter Mode with his son