Super Sisters

Supergirl opens the pod to see her long lost/ almost forgotten little sister Mora. Mora was lost on a star called Corling for 12 years until she found out she had a big sister named Kara. She searched and searched for Kara, but wasn't able to find her until one day s strange lady came up to her and told her she knew where her sister was. She was on a planet called Earth. So Mora took her pod she used to get from Krypton to Corling, and flew to earth in search for her big sister. Her search didn't last long for she was found and reduced by Kara.
This is an au where flash arrow and Supergirl are all in the same earth
Characters from the show supergirl were not created by me, only Mora was.
Starts off from the end of the season finale of supergirl season 1. Except Kara is still Cat's assistant.