Set in a quirky, bustling city where emotions run high, you play as an eccentric detective named Morty Vex, who has the unique ability to physically trade hearts with others to understand their emotions and motivations. When a series of mysterious heart thefts begin wreaking havoc, you must navigate the city's eccentric subcultures, solve puzzles, and form emotional connections with various characters to uncover the truth. As you help others come to terms with their feelings, your own emotional journey will influence gameplay, leading to multiple endings based on the hearts you choose to embrace.