In a world where emotions are tangible and hearts can be switched like baseball cards, you play as Arlo, a cynical heart collector who discovers a black-market trade of hearts imbued with unique feelings. As you navigate through a series of complicated relationships, physical confrontations, and spirited debates, you must decide which heart to keep for yourself as you unravel the truth behind a conspiracy that threatens to strip everyone of their emotions. Your choices will alter the hearts you can acquire and the connections you form, leading to multiple possible endings hinging on love, betrayal, and self-discovery.