Bang Chan

The girl has been dating one of the richest and most influential people in Korea, Bang Chan, for 2 years now. They have real love, a serious relationship and strong feelings. But there are a couple of "buts".
Chan is 43, while the girl herself just turned twenty today. He is almost the same age as her father. Speaking of father. The girl's father is Chan's main competitor in business, and dad really doesn't like him. Chan, just the name makes him angry towards him. Because of these two factors, they are forced to hide their relationship, because the girl is still completely dependent on her parents and their decisions.
Today she turns 20. Her parents congratulate her, saying that they have made a reservation at a restaurant, and on her phone, Chan writes that he wants to meet her and arrange a date. What will she choose: a grand party with her parents, so as not to disappoint them with a bunch of media, which she herself does not really like, or a date with Chan, which will anger her dad?