In a near-future society where emotions can be bought, sold, and traded like commodities, players assume the role of Jack, an underground emotion smuggler who stumbles upon a black market ring dealing in stolen hearts. Each decision affects Jack's emotional state and moral compass, leading to multiple branching narratives. Players must navigate through intricate relationships with shady characters, find the true meaning of love, and ultimately decide whether to destroy or protect the remaining free hearts in the world.