From Tarita.

The stage of the story is set in Kawashima, Kanagawa Prefecture. Wakana Sakai, who entered the music department of senior high school, gave up the road of music and music halfway because of her mother's sudden death, and then transferred to normal school. When she was in the third year of high school, she took the opportunity to know Miyamoto Konatsu and Okita Sawa to form a choir, so she became attached to music again, and the youth chivalrous drama officially began.