1. Azarinth Healer. Towards chapter 200, I didn't know why I even ever started and cut it. The most upsetting where the characters. Especially bad was that one "betrayal by her friend that happened for no actual reason. Yet, a total trainwreck is the MC. The MC is a genocidal maniac. Culling whole ecosystems without care, so hard that it begs the question of how this solely predatory world even sustains itself, if levels are solely gained by killing. She makes decision purely by gut feeling, and somehow they always turn out to be the best. She's weirdly attached to people being violent to her, while abusing those around her who are weaker. The weirdest, she started out as a nurse in training, and at some point, she originally states that she hates helping people, because it's annoying.
2. Sapiens. That one took absolutely the worst out of any cultivation story, while disguising it as mana, magical fantasy. The MC starts with an uncalled-for inferiority complex because of having less raw strength, with ten times the versatility. Also, she gains power by killing. At the start, they say it's not like that, and that's good, because it would be sacrilegious power, but that's kinda ignored, as it works solely like this.
While she pushes herself to godhood, she becomes absolutely ignorant of those weaker than her, with zero tolerance.
But now to the greatest gripe. It's totally a rank system cultivation. Absolutely nothing can stop a character of greater power. Not even the laws of physics. Fire shields stop gigantic stone spears (however heat is gonna do that). They are immune to poison, because why not? They have passive total surveillance and can't ever be ambushed, not even in their sleep. The whole world bends itself to make it impossible that weaker level can even stand up to higher.
