This is completed with a
Spoiler!
Happy ending. 48 ch in total.
Spoiler!
The only villain here is the psycho eldest red-eyed boss who's obsessed with Hyun (and maybe his father who passed his evil genes to him). The younger brother (smol angry black cat boss with dark circles under his eye) and his dumb puppy sidekick aren't evil — he was just born in the wrong family. The father, mother and big bro of the MC wasn't as evil as we thought, they were just perfectionist and had their flaws but they really love the MC — they redeemed themselves in the end.
