Episode 15 Synopsis

Learning of Kosei's plans to leave home in order to attend a high school with a music course, Tsubaki can’t hide her feelings of confusion. It’s clear to those around her, especially Kashiwagi, that deep down inside, Kosei has become much more than the “kid brother” she’s always seen him as, and Saito-senpai, Tsubaki’s boyfriend, is no exception.