Set in a whimsical yet eerily atmospheric world, 'Whose Shadow Is That?' invites players to explore a vibrant city where shadows have lives of their own. The protagonist, a quirky amateur detective, finds themselves embroiled in a series of peculiar events after discovering that shadows are mysteriously stealing objects from their owners. Players navigate through various locations, interact with eccentric characters, uncover hidden secrets, and solve shadowy puzzles, all while keeping an eye out for the mischievous shadow that has a mind of its own. Choices made throughout the game will lead to multiple endings, influencing not only the fate of the shadows but the very fabric of reality itself.