I really like Hwajin Na's style of dealing with things, the arc where he teaches the dad on how to deal with kid and even gives him a job (which is very hard to come by in my country) was heart-warming, and it worked, the dad turned his life around, got custody of his kid, and they both were happier than ever.
I'm glad this manhwa wasn't canceled over that crap, because if it was, i would probrably have joined the triple K