Jim

''Jim was originally named Walter, who is a different character at this point. Oh yeah, this is Jim's character, not the actual person.''

Jim is one of the bajillion villains

basically he was originally a general good guy that was just the personification of actual jim

he was forced into becoming a villain in the AI in a dungeon and ended up fusing with Casimir and becoming Jimimir, who is basically just jim controlling casimir but they're fused with jim

then at the big dungeon he chased after Casimir, almost killed him, and took the Eternal Star to become Sorcerer Jim, his cool form

he summoned Darkclaw and became the biggest villain

he has some group of people called the Shadewalkers that's a thing that got established