Board Thread:Supergirl discussions/@comment-27399439-20171107183119/@comment-27700324-20171123193913

Dragonfly82 wrote: Ate they a couple in the comics? Overgirl died in the comics. Only Kryptonian shown on Earth-X in comics was Overman.

You see in those comics, Kara was a human part of a Nazi testing program to replicate Overman's powers for human beings. It didn't succeed and she died in a fire.