In a surreal world where hearts are not merely symbolic but tangible objects, players assume the role of Echo, a heart merchant who has the unique ability to swap hearts among different characters. Each heart represents a different set of emotions and memories. When a mysterious plague threatens to steal the essence of feelings from the townsfolk, Echo must navigate a web of twisted relationships, uncover secret desires, and make morally challenging decisions. Every choice shapes the town's fate, leading to multiple endings based on how much you've learned about the residents and yourself. Will you restore their hearts, or unleash chaos?