Dou Kyu Sei: Classmates (2016)7.7 /10

Storyline:  Hikaru Kusakabe, a carefree rock band member, is forced to join his class’s chorus festival. He meets Rihito Sajou, a serious honor student struggling with singing. Intrigued, Kusakabe helps him prepare. Despite their differences, they grow close—but with an uncertain future, their relationship faces many challenges.