Recommend me novels (fanfictions and originals included) that have extremely fast strength growth. You know what I mean: The MC starts as a kid but in 20k words or less he reaches a power level where few can match him. That kind of story, where at least a third of the story happens after the MC has reached the apex. That means: NO wuxia novels with endless cultivation where there always are people a lot stronger than the MC. Edit: Not grinding stories either please. Again, at least 30% of the story should be a story that doesn't consist of doing the same thing over and over again (going into a dungeon, clearing it, becoming stronger and going into the next dungeon. that isn't a story, that is a game protocol) Thanks
most Korean novels with game elements fit this, especially Solo Leveling where he gets absurdly strong very fast.
Instant Death (MC is overpowered from the get go though FL is gradually getting stronger and have a ghost to help her)
Demon Girl ~Tale of a Lax Demon~ Is the Strongest in Another World a Hero? A Demon Lord? No Tilea’s Worries To Be a Power in the Shadows! The Strategy to Become Good at Magic
For Love of Magic - HP fanfic, Harry carves on himself growth, power and other runes. It has a lot of lemons but I just skipped them, the story is awesome.
fff trash hero has to redo his adventure from scratch after defeating the demon king. He powerlevels while abusing the system and becomes strong again really fast. The title is a bit misleading, he is a trash hero only because he hates the power of friendship and thus got an fff rating in character. Not because he has an underrated skill/starts with shit stats at lvl 1 but from lvl 2 is op af like in jp novels