Selonia

Blue hair with pale skin. Dark blue vest with gold trimmings and a light blue fur trim. A tan fur scarf. Yellow eyes with black trousers and dark blue boots with a light blue fur trim

Rimuru is an eccentric and childish person by nature but this shouldn't be mistaken for immaturity and naivety. Underneath the surface, Rimuru is constantly analyzing, planning, and weighing the pros and cons of their actions, taking the smart move in the long term over more rash and emotional decisions.

Mikami came from a faraway land, a country run by monsters. He was reincarnated from another world after getting killed and is now a slime. He strives to make a better world that has every race living in harmony.