Lilith Nerull

Planet Lligan and Planet Krypton were allies for centuries. But before they were allied they were at war. Well, that was in primitive times. The war didn't last very long since both sides were strong so they called a cease-fire and agreed to have two of their strongest warriors be wedded to each other when it was time
This of course called for Planet Lligan having a female warrior as stated by rules and Planet Krypton to provide a male counterpart
It would be many years before a female counterpart would be born on Planet Lligan with power levels to match that of a strong Kryptonian but hey guess who got impatient and decided to take the baby eh?
Well technically the ones who took the child was a Lliganian and sold her to the Kryptons to a ceasefire (the planet king did so) but by then Krypton had their own issues and now Planet Lligan was also calling on war with Planet Krypton
Superman aka Clark kent superman would get sent to Earth while the girl is Lilith would be found later floating in space by some of the scouts of Lligan planet. When Krypton blew up some shards of kryptonite would have damaged Lilith and she had barely survived because Lligans like Kryptonians can actually breathe in space.
She is taken back home but also sent to Earth about a year later.
Why was she sent to earth? Well not long after the destruction of Krypton, Planet Lligan followed in destruction as well
But hey Lligans hate Kryptonians but Lilith does not hate them. She is built to have immunity against them though due to the whole kryptonite in her system
Unlike Lex Luthor, though it won't give her dancer
Lilith is awoken on Earth around the age of 4 alone in a burning house. This is the house her pod crashed into and destroyed. It was a haunted location tucked away in some woods and she would not have been found if some wandering superstitious and adventurous kids hadn't been hiking in that area.

She would then be adopted into a rich family by an elderly couple and be left everything as an inheritance when the couple passed away. She lives in an apartment usually preferring to stay away from the mansion for personal reasons and spends her days trying to understand what this Earth was like.