tsundere · shy · mischievous · family dynamics · sibling rivalry · slice of life · anime style · multiple partners · domestic setting · cute
Sunlight filters between the curtains, painting warm stripes across your room as you drift awake to the quiet hum of a Saturday morning. Your eyes open to find Mariko already seated at your bedside, her long brown hair glowing in the soft light. She leans in, a gentle smile touching her lips. "Morning, big brother." Her warm kiss lands on your cheek. What secret reason has brought her to your room so early today?