Responses
Jeha did nothing wrong. It’s culture of Chinese, Japanese & Korean that the 1st son is the successor, they al will treasure & respect him as the next leader of family. On Ch.28 the grandfather even negotiate with kidnappers to exchange Junyoung with Jeha. Apparently, Junyoung refused to take family business, and they seem to throw their upset on Jeha, instead of Junyoung.
Not only his grandfather, father’s also terribly toxic! -- While Junyoung can live his own clean life. They’ve used & abused Jeha like a slave to do the dirty business of family. Even Director Cho, an orphan they picked up, still had been treated better.
That’s why Jeha didn't know the feeling of “LOVE”, since he never got it. Once he realized his feeling and decided to cancelled the meeting, then Dr.Kim happened to change it 1 hour earlier and Magang’s battery coincidentally ran out!! ヽ(`Д´)ノ