If we're talking about the character arc masters within Er Gen's catalog, I immediately think of Wang Lin from 'Renegade Immortal'. That dude starts so utterly broken, just a kid with a messed up fate clinging to any scrap of power, and watching him harden into this calculating, almost terrifying figure who still holds onto one tiny, specific thread of humanity is something else. It's not a clean hero's journey; it's brutal, it's messy, and you sometimes question if he's even the 'good guy' anymore, which makes the whole thing feel earned.
Some readers swear by Bai Xiaochun's journey in 'A Will Eternal' for the opposite reason—it's hilarious seeing this cowardly schemer evolve while desperately trying to avoid any real growth, yet somehow becoming this pivotal force through sheer, stubborn survival instinct. The comedic beats make his occasional genuine moments of power or sacrifice hit way harder.
Meng Hao in 'I Shall Seal the Heavens' is another classic example, transforming from a cunning scholar into, well, a legend who steals the sky itself. The sheer scale of his arc feels epic in a way few other authors manage, though sometimes I wonder if side characters get a little short-changed for the sake of the main climb.