This 21st Century FAX production tells the story of a sweet, affectionate little sister character full of charm. Aimi-chan always smiles brightly, dimples appearing on her cheeks. With captivating eyes that seem to draw you in, she gazes at me, wishing I'd come home from school sooner every day. Since our parents are both working, the time before dinner becomes my special private moment with Aimi-chan. Her small, undeveloped chest is a sign of her innocent youth. When she calls me "Onii-chan♪" in her cute, childish lisp, I feel like buying her anything she wants. Though Aimi-chan shyly hides her underwear from me, I can't help but stare at her every day. I'm relieved that she hasn't started growing pubic hair yet, and even when I say I won't allow it when she does, she simply responds with an adorable, round smile and a cheerful "Un!" Having such a lovely little sister makes every day a happy one. These pure, affectionate moments spent with my little sister are truly unforgettable and precious.