The scientist the siren and the other scientist

A avengers fan fiction.
Bruce Banner discovers a baby girl on the beach before he became the hulk then 3 years later he had another daughter.
His oldest daughter supposedly died but could she still be alive.
In a failed experiment the younger daughter gets exposed to nuclear power, is she going to be okay.

Takes place in time between captain marvel and Iron man, age of Ultron, Civil war, Thor ragnarok, infinity war, and end game.

I have not seen the original hulk movie so I dont know if any of the first few chapter could or did actually occur

I do not own Marvel just my OCs