In a world where sound can manifest physical objects, you play as Alex, a sound explorer with a highly tuned ear. After receiving a mysterious message over an abandoned radio frequency, you must navigate through the soundscapes of various realms—each representing different emotions and memories—while piecing together clues that reveal the sender's identity. Each choice you make alters the resonance of the sound surrounding you, leading to multiple endings based on how you choose to interact with the echoes of the past. Along the way, you'll manipulate sounds to create pathways, uncover hidden secrets, and face off against sound-based entities, all while delving into the nature of communication and connection.