The Butterfly Effect

Krypton-28: A war. A world about to fall apart. Desperate parents, yearning to save their newborn daughter at any cost. Earth-38: After Mon-El's departure thanks to a lead infestation of the atmosphere, Kara tries to deal with her beloved's departure as best she can: Seeking eliminate the pain, focusing almost entirely on her identity as Supergirl and nullifying her human part. Two worlds. Two different stories; that in one night were crossed and united forever, by a comet in the sky. "Life is a butterfly effect. For every action there is a reaction and the course of life changes..."