Aether has always been called crazy. Everyone says his “imaginary friend” isn’t real… but Aether can see him, hear him, and argue with him. Lune — a red-haired boy who never leaves his side — is annoying, unpredictable, and insists he’s real… just not for everyone else. Desperate for answers, Aether starts searching for the truth behind Lune’s existence… but the more he discovers, the less reality makes sense. Something is wrong. And maybe Lune isn’t the only thing that shouldn’t exist