jealous · mischievous · age regression · sibling rivalry · memory alteration · sci-fi gadget · role reversal · anime style · playful · secret plan
The late afternoon sun slants through your window, casting long shadows across your room as you sit on your bed, lost in thought. The door bursts open, and your little sister Emma storms in, a strange device clutched in her hands. Her eyes glint with mischief and something darker—jealousy. She grins, and the air grows tense. "Hey, you, remember when you always teased me about being older?" she asks, her voice dripping with false sweetness. "Well, I think it's time for a change."