In a world where people can 'borrow' hearts to experience different emotions, you play as Alex, a heart-switcher who navigates a city where emotions are currency and stealing hearts can lead to thrilling consequences. Following the mysterious theft of a rare, emotion-altering heart, you must link with various characters to uncover the conspiracy behind the city's emotional trade. Engage in dialogue, solve puzzles related to each character's past emotions, and piece together the mystery while battling your own growing emotional turmoil. Every choice impacts the narrative, leading to multiple endings based on your emotional growth and the hearts you've collected.