Twenty-Five Twenty-One - FL and SFL. They are rivals who compete against each other. The FL initially idolizes the SFL, but the SFL strongly dislikes and bullies the FL.
Goblin - ML and SML. It's probably too strong to say they each *hated* each other. But they definitely bickered.
Crash Landing on You - The ML's squad and the FL. Again, probably too strong to say hate, but there were threats and lots of bickering.
Chief Kim - who can forget this bickering enemies who try to outsmart each other, only to end up being bickering friends with the side of skinship
Short - ML and 2ML are Rivals to Comrades
King 2 Hearts - not really enemies but more of a spoiled little prince who can't stand (hates) the straight-laced principled soldier. Prince pulls every available prank and commands but he can't crack the pure-hearted soldier that just wants to protect him
Sunkyungkwan Scandal - ML and 2ML are from clans that hate each other, and thus they also have this animosity. but they become part of the Joseon F4...
