In a world where emotions are tangible, players assume the role of a heart-thief infiltrating a grand emotion auction to reclaim their stolen heart. Each choice leads to different emotional encounters—from the exhilarating highs of joy to the crushing lows of despair—affecting the world and its inhabitants. Players navigate a morally gray landscape, making alliances with quirky characters while deciphering cryptic clues to locate their heart in a city that thrives on emotional trade.