Sanjou loves techno music and accidentally finds out one of his classmates, igarashi, is a DJ. They start having a physical relationship and also become friends. Sanjou is actually straight but falling inlove with igarashi. Igarashi has always low key liked sanjou since sanjou didn't hide in class that he was into techno music. Igarashi goes abroad to uni for 4 years but they long distance and reunite
Kimi no Oto ga Nari Yamanai