I feel like only Madhouse could do it justice, to be honest.
The problem there is that Madhouse is notorious for one-season-wonders for anything that isn't Overlord, so we'd get probably only get one season with an open-ended cliffhanger in the last episode and nothing beyond that.
He IS Lufasu, his male body on earth is just a proxy Dina made to hide Lufasu's soul from the goddess. After Lufas and Dina go to earth she puts a new soul in her proxy body and it lives a normal life.