After my father's transfer, I left home and enrolled at ● High School, eventually returning to my hometown. When I visited my childhood friend's house for the first time in a while, I was greeted by his older sister, Sawa. She's six years older than me, and it had been four years since we last met. Ever since we were kids, she always told me I was "cute" and kindly looked after me. But my childhood friend had forgotten our plans and went out, not due to return until evening. Invited by his sister, I ended up waiting together with her...