In a world where hearts can be traded, stolen, and even gifted, you play as Cassia, a heart-swap investigator in the bustling city of Amoria. After waking up with a heart that doesn’t belong to you, it's up to you to navigate a mosaic of love, deception, and mystery. Solve puzzles by reading social cues, navigating intricate relationships, and dabbling in the art of matchmaking to uncover the original owner of your heart before time runs out. With branching decisions that lead to different endings, can love truly conquer all, or is someone playing a dangerous game?