Second Summer, Never See You Again(2017)

二度めの夏、二度と会えない君

Satoshi, who is a high school junior, is doing something against the rules. He is forming a band. Joining him is Rin. They nonetheless perform at the school's cultural festival live in front of their fellow students. There is a mishap and Satoshi travels back in time to the moment when he met Rin.