Arisu Yamabuki is heir to a powerful conglomerate, and seeks perfection. After Apollo, the host of Midnight Heart Tune, vanishes, Arisu joins the Fuurin High broadcasting club. There, he meets four girls and promises to make their vocal dreams come true!

With no memory of his previous life-or who replaced his head with a giant gun-Juzo Inui now scratches out a living in the dark streets of the city as a Resolver.

Himari’s 16th birthday will be one she never forgets. Unexpectedly, she receives a will detailing her inheritance of a mysterious estate: the Momochi House. She arrives only to discover that the home was built on the cusp between the human world and the spiritual realm. There, she encounters Yukari, Ise, and a peculiar boy named Aoi, who seems to be concealing a shadowy secret.