Turns out the father who always ignored her suddenly figures out he loves her and starts to unconditionally support her. Also he does not like the evil family that the MC wants to get revenge on. Even when MC kills them, he is all supportive, no questions asked.
Literally the first 5 or so chapters show that, where author just sums up the beginning arc, 2 years of training, in those few chapters. After that there will also be a few more time skips, during which nothing happens besides MC gaining a new ability.