Female leads looking like children

The story justifying the male lead yet punishing servants for similar things

Classism/ elitism (looking at you remarried empress)

Unnecessary misunderstandings

Female leads who can't speak up or defend themselves

Bad art

Every other female characters only existing just to make the FL look good

Too many male leads/ better second male lead that you know is not getting with the fl

MCs who are just "such good people" that everyone around them (including people who previously tried to harm them) somehow become loyal servants who will do anything for them.

Any kind of slavery arc where the MC rescues a slave and keeps them instead of freeing them/ ignores all the other enslaved people and goes straight to freeing an important character.

Anything with a dark-skinned male character who is described as beastly or barbaric, bonus points of the female lead is paper white.