I personally think that romance here is unnecessary. Rather than seeing him struggle to prove his worth to his girlfriend's father, I want to see his growth within and out of the military. Romance is just an annoying mix here. Mina is annoyingly clingy and her father is overreacting for a general. Plus, look at how he treat his wife.
Every chapter, I wonder to myself why I'm still reading this sh!t. Finally stop at chap 31. It's like written by a 13 years old who loves a cool but cruel hero.