Love Dissonance(2022)

Love Dissonance is a Japanese series set in a high school where new music teacher Masaki Nitta arrives to find the school reeling from his predecessor's mysterious disappearance. When Masaki plays piano in the music room the night before his first day, he encounters Sae Izumi, a student grappling with a personal crisis. Sae is enrolled in the class where Masaki will serve as assistant teacher. As the two navigate the shadow of the missing teacher, an unexpected bond forms between them, drawing them deeper into the mystery surrounding the school and each other.