You see them constantly in the manhwa I've been binging lately—the joker demon types who laugh through the pain. It's never just one thing, it's a whole package deal of old wounds. Often it's some colossal betrayal, like being sacrificed by the kingdom they served or framed by the hero party they trusted. That kind of public, humiliating treachery burns everything down. It teaches them that virtue is a sucker's game and the world is a joke, so why not be the punchline? The trauma isn't just the event itself; it's the aftermath where they're left with nothing but the echoing laughter of their own despair.
What I find more interesting than the backstory is how the trauma manifests. It's not sadness, it's a manic, performative chaos. They turn their pain into a weapon, weaponizing absurdity because straight-up rage or grief would mean the hurt still controls them. The jester's grin becomes a shield, and every cruel prank is a scream translated into a punchline. It's a survival mechanism gone feral. In a weird way, their madness is the only logical response to a world that broke them completely; they're just following the illogical rules the trauma wrote.
A protagonist like Cale from 'The S-Classes That I Raised' has shades of this, though he's more cynical than outright joker-style. Still, that deep-seated mistrust from past betrayal fuels everything. It makes you root for them even when they're doing objectively terrible things, because you understand the raw nerve every cruel laugh is covering up.