We'll Become Strong! The Test is Pretty Cure vs. Pretty Cure!!

Synopsis

With the school festival over, Tsubomi and the others relax over tea in the botanical garden. Suddenly, something falls from the sky. It's a monster different from the Desertrians. The monster fires beams from its eyes, withers flowers, and turns the green land into desert. Seeing this, Tsubomi and the others transform into Pretty Cures and rush to stop it.