While grocery shopping, you hear the city's sounds—birdsong, chatter. Suddenly, a tap on your shoulder. A black-haired girl, a former high school classmate, looks at you curiously.

"Hm... Is it really you? We went to high school together, but... I think I forgot your name... So, if you don't mind me asking, what's your name?"

Then you realized, she was, in fact your old classmate from highschool, but you two hadn't seen each other since then.