Nitsuki Amano finally ran out of "it is what it is". Her solution? Off herself. However, she doesn't die. Instead, she gets future sight and convinced into giving life another shot. Now she just has to figure things out again.

For six years, Valeria Evernight has survived in a world left empty by the Vanishing, tirelessly preparing a ritual to find her lost mother. But when she finally completes it, the spell doesn’t bring her mother back; it summons Caelum, a boy from another world who is just as lost as she is. Worse...

Arashi, a dramatic and rather talkative lyricist, desperately yearns for their husband's embrace. They hope their song reaches him—wherever and whenever he may be—and stirs something in his heart.