In a world where shadows have their own consciousness, you play as Lina, a shadow reader who can communicate with shadows tied to people. When a series of strange disappearances rock your city, you discover that each shadow is harboring secrets that could unravel the fabric of reality. Each chapter immerses you in a new character's life as you decipher their shadows' messages and solve riddles. As the boundaries between light and darkness blur, you must decide whether to free the shadows or contain the chaos they bring. Your choices will influence the world around you and ultimately determine the fates of both the living and their shadows.