[Orange] The last guardian of the world—Haga Mayumi—after the destruction of her world, finally broke free from the trap of immortality and entered into eternal slumber. However, when she opened her eyes again, she was reborn in another world. This world is strange. The guardians here don't get hurt or bleed, and they don't get covered in dirt like she does in battle. They always have sparkling magic to keep their clothes clean, and they can fight and fly in light dresses without revealing anything. Those guardians with brightly colored hair and clothes are called "magical girls," and it is said that no one knows their identities. Even though Haga Mayumi's childhood friend, classmates, transfer students, school doctor... and even the idol girls she saw on TV all have unusually bright hair, and each one corresponds to the hair color of a magical girl, no one notices anything unusual. It's outrageous. However, she doesn't know that the most outrageous thing in this children's world is herself—she can bleed, can move freely again in three minutes after a severed arm is stitched back up, and can resurrect from a state of minced meat after exploding into orange juice and splattering people's faces.