Haruka Nanami, a country girl with a passion for composing music, aspires to write songs for her idol, Hayato Ichinose. To achieve this dream, she enrolls in Saotome Academy, a prestigious school for the performing arts. Upon her arrival, Haruka discovers that the entire staff, including the principal, consists of idols, composers, or poets. Surrounded by gifted future idols and composers, she faces intense competition as the chance to be scouted by the esteemed Shining Agency looms over the students. Amidst the fierce pursuit of her aspirations, a pivotal encounter with a mysterious man under the moonlight sets Haruka on a path where familiarity and destiny intertwine.