Nana is a high school girl living in a rural town. - It became a daily routine for me to stop by a familiar coffee shop after club activities. - One day, she was surprised to learn that the store was closing, and told the owner, ``I don't want everyone to have a place to relax!I'll help you out.'' - The shop owner was defeated by Nana's strength. - From that day on, I started working part-time after school. - A few days later, while cleaning the store, Nana suddenly notices a storehouse. - Nana sneaks inside and sees the owner's secret...