Silent (TV Series)

Aoba Tsumugi was a second year high school student when she heard the voice of a male student during a morning assembly and was attracted to it. The male student was Sakura Sou, who was reading an essay on stage. In the third grade, Tsumugi and Sou were in the same class and slowly started dating. Their relationship deepened through their shared hobbies in music but Sou suddenly left Tsumugi and disappeared one day after their graduation.