Alright, picture this: you're strolling through ancient Japan, minding your own business, when suddenly, you bump into an Oni, a demon straight out of your wildest nightmares (or folklore, but who's splitting hairs?). These guys are the original ogres of Japanese mythology, sporting horns, wielding massive clubs, and generally having a bad reputation for causing mischief or outright terror.

But here's a twist – not all Oni are bad to the bone. Some are just misunderstood entities with a heart of gold, buried under layers of fierce exterior (and perhaps an unfortunate dietary preference for the occasional human). Sometimes, they even transition from villain to protector, highlighting Japanese folklore’s depth beyond black-and-white notions of good and evil.