
S01E01 Melodious Cipher
High school brass band club members and newly reunited childhood neighbors Haruta and Chika decode a mysterious message hidden in the music of Bach and become rivals in love.
According to the will of Mr. Kusakabe's former teacher, his granddaughter, Makoto, is the only one who knows the whereabouts of the key to his beloved piano. Can they figure out the secret of the key's location?
Haruta and Chika are members of their high school wind instrument club that is on the verge of being shut down. The two are childhood friends, and they spend their days practicing hard while also trying to recruit new members. When a certain incident happens within their school, they work together to solve it.