Ayuha Samaru (Minami Hamabe) is a high school student. She is honest and works hard at everything, no matter what. One day, she has trouble at a gyudon restaurant due to money. A man at the restaurant, Yoshitaka Hiromitsu (Ryoma Takeuchi), helps her out. The next day, she finds that Yoshitaka Hiromitsu has come to her school as a substitute teacher for her ill homeroom teacher. Ayuha Samaru now believes that Yoshitaka Hiromitsu is her fate in love. She keeps expressing her feelings to him. --asianwiki

A young music lover named Asano Daiyoshi died at the young age of 20. In that fact, there is a feeling that a miracle that cannot be imagined overflows the bonds of many people. Feel the brilliance of life that you can live powerfully even if it is short. It's a movie that everyone can sympathize with and give courage to tomorrow.

Miyu and Shuya are high school students. They have dated for 2 years. Miyu and Shuya have a promise that no matter what, they will watch a movie together on the first day of each new month. When Miyu and Shuya are on their way to the movie theater, Shuya suddenly cancels their date. Shuya seems like he is hiding something and he acts nervous. Later, Miyu goes to the place where she is supposed to meet Shuya, but she witnesses Shuya getting into a car accident. She panics, but when she wakes up she finds herself on the morning of the accident. Miyu keeps waking up on the day when Shuya got into an accident.