In a world where shadows dictate reality, players step into the shoes of Aveline, a shadow-weaver with the unique ability to manipulate not just her own shadow, but the shadows of others. As Aveline navigates the bustling city of Lume, she discovers a clandestine plot that threatens to merge the realm of shadows with reality. Players make choices that impact the outcome, navigating friendships, rivalries, and treachery while solving puzzles based on light and shadow. Each decision alters the shadows around them, revealing or concealing secrets tied to varied character backstories, ultimately leading to multiple endings based on the paths they choose.