In a dizzying world where consciousness can be switched like an outfit, you play as an unassuming librarian who gets embroiled in a high-stakes game of identity theft. After a mysterious force causes you to lose your own heart and inherit someone else's memories, you must navigate the lives of different individuals whose hearts you now possess. Each heart presents unique challenges, relationships, and moral dilemmas as you attempt to piece together your true identity while figuring out whose heart you truly want to keep. Shape allegiances, unveil hidden motives, and ultimately decide if knowing someone else's heart is worth losing your own.