In a dystopian future where echoes of past lives can be summoned to interact, players take on the role of Echo Hunter, a nefarious yet charming protagonist tasked with unraveling the mystery of a powerful entity manipulating echoes for sinister purposes. As players navigate through various timelines, they will engage in witty banter with echoes of historical figures, solve intricate puzzles based on their lives, and make moral decisions that influence the fabric of time itself. Each choice alters the narrative, leading to multiple endings based on how you choose to reveal or conceal the truths behind the echoes.