Every once in a while, a siren can slowly lose her memory after her source of power is destroyed. This curse only happens once in a million years, and unfortunately it has struck the leader of the Dazzlings, Adagio Dazzle. There is only one way this can be reversed- the one who cares for the siren the most will have to keep their memory alive for one day. Seems easy. But for Aria Blaze and Sonata Dusk, it might as well be impossible.