Set in a whimsical world where characters can swap hearts, players take on the role of a quirky protagonist who suddenly finds themselves in possession of a heart that doesn’t belong to them. To uncover the truth, they must navigate through the emotional landscapes of various characters, each with their own unique motives and backstories. As players interact with these figures, they will solve puzzles based on emotional intelligence, learn to empathize with others, and piece together the mystery of whose heart they've taken and why it matters. Every choice impacts the storyline, leading to multiple endings based on the connections they build or sever along the way.