> crazy overpowered protagonist and his Level 9999 friends almost meet their match
Is this the origin of that trope? I've seen a couple of anime/manga that use the same story as a jump off point. Character that doesn't know their own strength kicked out of the party for being "weak" only for us to later find out they are one of the strongest/most powerful individuals in the world.
Nah, that one is too new. Turns out this guy's power is only useful at the very bottom of the most dangerous dungeon which has dense enough mana that he can summon people and items stronger than the surface world. It's marketed as a crazy revenge fantasy and it is that, but it would be unfair it to compare it to the really mean-spirited revenge stories that come out of Korean and China.
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