Ten years prior, a mysterious phenomenon known as the Blue Moon Lament transformed ordinary people into monster-fighting heroes powered by strange, otherworldly relics. These superpowered individuals have since been nicknamed as "lamenters".
Recently, however, these heroes have begun vanishing into thin air. Concern has gripped the world: a concern that Vidal, more formally known as the lamenter Rainbow Light, undermines. It's a hysteria, he believes, a mass panic where none should occur.
However, when one of his best friends vanishes into thin air, Vidal quickly finds himself forced to face the reality of these claims. The clock is ticking down...and it might just be too late to save the ones he holds dearest...