Honestly I really loved the drama in the beginning it was cute and everything with jun pretending to be cold yet being completely smitten but like the last 2 episodes. They're the worse.
Honestly I would've been less annoyed if it was a sad ending because the ending made absolutely no sense to me.
It started off great, the past and everything falling in place slowly but not the last 2 episodes man.

I suggest if you do decide to watch it stop at episode 12/13.
Stop while it's good.