I think the best way to describe the first episode is... ~~almost~~ reverse Samurai Jack.
The Great Demon Lord, who was defeated by the Hero 500 years ago, finds himself resurrected in a cyberpunk world with fantasy races, and his formerly mighty magic is now obsolete with little implants that literally everyone has that allows them to perform magic faster than he ever could.
This makes him a fish out of water in this new world, where his mighty abilities are now obsolete.
One of his former lieutenants owns the (obligatory cyberpunk) Evil Corporation that sells these implants, and takes out his long repressed resentment on his former boss.
It's good. The writing is good, the direction is good, the world building is interesting, the characters are sympathetic and their motivations are believable. Not bad for a JC Staff production.
I'm a little wary that this good setup could go sideways in the following episodes, but this seems worth watching for now.
p.s. The OP is good.