A medium shot from a side angle depicts a high school girl gently cradling a tiny 1-year-old baby girl in her arms within a cozy indoor setting. The teenage girl has long straight black hair and is dressed in a neat school uniform; she gazes down at the infant with an absolutely smitten, love-struck expression, featuring flushed cheeks and heart-shaped pupils that radiate overwhelming adoration. She holds the baby securely, her arms wrapped in a tender embrace and her fingers gently supporting the baby's back. The tiny baby girl, dressed in soft pastel-colored baby clothes, looks up at her sister with innocent, big sparkling eyes and a curious expression. The background is a warm living room where soft afternoon sunlight streams through sheer white curtains, casting a gentle glow over the scene. The atmosphere is one of slice-of-life healing and deep sisterly love, rendered with a soft pastel color palette and warm indoor lighting that enhances the heartwarming and cozy mood.