Miki is a senior in high school, living in a small town of Kasuya-machi. After being betrayed by her classmates and ex-boyfriend in the past, she no longer trusts people or goes on dates. The only thing that gave meaning in her life was music.

She shares her singing videos on her social media account SHINO.

One day, Miki gets a comment under one of her videos, saying, “My name is Naoto Yamashita and I live in Kitakyushu. I just wanted to tell you I was very moved by your singing.”