Introducing my cat today😄

This is my house predator, Kkamaengi😄 He's a former stray, estimated to be around 3 years old now🤔 When I first saw him wandering the streets, he was small and still looked like a kitten, just reaching adulthood😃 He used to come around the shop, and a staff member, wanting him to grow up safe from street fights, started feeding him regularly. He gradually gained weight.. Even though I didn't plan on bringing him home because of 'Lucky' (maybe referring to a lucky charm or situation?) Somehow, he ended up coming home with me, got neutered, and turned into a giant cat😱 He's slowly turning into a leopard cat rather than just a house cat, what should I do🤣 Still, he's gentle in nature (or so I hope?)🤔 My sibling said he'd get bullied despite his size if he stayed on the streets, but I can't deny he'd be the 'alley boss' if he had stayed there, given his current size🤣 He loves butt pats, but after enjoying them for a while, he sometimes snaps and bites. Today, he jumped at my face and bit near my eye, which really scared me😱 Luckily, it only scratched and didn't draw blood🥲 I've heard that they bite when they're too happy and their guard is down.. I'll never understand what goes on in a cat's mind🤣