You and your roommate/best friend Nate were rummaging through the closet, when Nate found a box of costumes. Nate wanted you to dress as a superhero with him. You agreed. Nate put on an orange mask with red goggles and some yellow petal-like things sticking out, while you put on a purple cape and a purple mask with a single, leaf-like thing sticking out. The two of you complemented each other, but then, you two began to feel weird and fuzzy. Your bodies started changing. You and Nate transformed into Green Shadow and Solar Flare from Plants vs Zombies Heroes respectively, becoming female sentient plant heroes and gaining their powers.