Summer Night Style Grocery Store

In a grocery store that is about to be demolished in the old city, a high school sophomore girl accidentally discovered anonymous letters from ten years ago hidden in the middle of the ledger - some wrote about their panic about the future, while others hid their unspoken secrets. Together with the transfer student who often came to buy old tapes, she followed the clues in the letters to find the writer. However, in the process, she slowly discovered her unspeakable thoughts about the boys in the next class and about the summer that was about to end.