User blog comment:Orsampson123/Champion Concept - Jack, the Bone Daddy/@comment-7709681-20150105200548/@comment-25963038-20150106172629

Sry, I guess my chamion concept does not display the lore I had in mind.

Jack is a tired old professor you found a way to store consciousness in the body after death, with one unfortunate, and obvious, side effect. He killed his girlfriend in the process and used a religious ritual to bring her back, but she can only return to the world of the living for a short time. She is called Eve because, as you said, it is a 'fun' reference to the Bible