Thanks for the feedback!, ill write down the answers to these questions here so you can look and get more info :
@glossy crescent
1- still trying to figure that out, i want him to have always been slime like. so no (human turning into slime) type stuff, i was thinking something along the idea of maybe a s new material that was created turned sentient, which could allow me to add another feature ive been thinking of
2- My first idea for his surroundings was that he is in a modern/futuristic version of earth where their is a lot more diversity in peoples appearance. (ex: mechanical limbs) Its still humans and the majority are "normal" looking
3- For his violent tendencies i was thinking it would stem from his easily offended nature, and that stemming from ether a pride his owning his own business and/or discrimination he may have faced in the past due to his "abnormal" appearance.
4- His cleanliness obsession i think should be connected to being in a café (something about keeping a clean workspace/kitchen) and maybe with how because he is a slime he would be prone to melting under intense heat which would obviously have a negative affect on his clothing.
5- he wears a suit for formalities, but it may be would be cool if its custom made to be more resilient if he were to start melting while wearing it. he specifically wears gloves however to ensure any slime residue doesn't get on anything he touches for courtesy.