Well, an overpowered MC usually has insane strength, skills, or abilities that make them way ahead of others. They can easily overcome challenges and enemies with little effort.
Some of the top MC manhwa include 'The God of High School' and 'Solo Leveling'. They're popular for their exciting storylines and well-developed characters.
A mentor figure could be the one betraying the mc. The mc trusted this mentor completely, but the mentor has some hidden motives. Maybe they are working for a greater evil and see the mc as a threat or a tool to be used, so they betray the mc, which then causes the mc to turn dark.
The OP MC in manhwa reincarnated stories is typically characterized by exceptional strength, intelligence, or magical abilities. They may have a hidden past that ties into their current powers and often face powerful enemies to showcase their dominance. Their growth and development throughout the story are what make them so compelling to readers.
The MC could become a penguin by accidentally entering a forbidden area or getting involved with绁炵 powers. Challenges? Well, there could be problems like not being able to move fast on land or struggling to fit in with the penguin community.
I'm not sure specifically as there could be many 'evil mc' (evil main character) light novels out there. It might be about a protagonist with a dark or villainous nature and their adventures, conflicts, and growth in a fictional world.
The connection could be that the MC acquires the Buddha Palm through a special training or encounter, and it becomes their signature move in the manhwa. It might also have some hidden powers or limitations that add to the story's intrigue.