The story is set in Tonakishima, a small island with a population of 600. Hana, a high school girl who lives on the island, loves recitals, and holds regular reading sessions for the island's children. Mizuki, the president of the Broadcasting Club, senses Hana's power to attract people through her reading and invites her to join the club. Hana joins the Broadcasting Club and experiences many firsts with the other members.

Sae Iwata, a slightly tougher-than-average girl, falls for the gentle smile of Koki Kamishiro, a delicate boy, back in elementary school. By the time they enter junior high school, Koki has grown into a charming and popular teen who now feels out of reach. When they are assigned to the sports festival committee together, Sae’s long-hidden first love begins to stir once more.

The year is 2045. Singing is forbidden, and an AI system called MiucS creates music in place of people. Seria Aiba, a high school girl who can see spirits, lives quietly under these rules—until one day, she hears a real human voice singing. Following the song, Seria discovers the source: a ghost. Now Seria must decide whether to stay silent or risk everything to bring music back to the world.