One fateful summer, a group of elementary school kids set adrift on an abandoned apartment building must look within themselves to find a way back home.

When a malevolent entity intent on eradicating music from the world surfaces, Nobita and his friends must unite with supernatural companions to safeguard the planet.

Iroha’s life gets knocked off its orbit when Kaguya, a carefree runaway from the Moon, moves in and convinces her to perform in a virtual world together.