Step into the shoes of Iris, an unconventional heart surgeon who discovers that patients' hearts can reveal their deepest secrets. When a mysterious organization kidnaps Iris's friends and replaces their hearts with those of deceptive individuals, she must navigate a complex web of morality, ethics, and interpersonal relationships to retrieve them. As Iris, engage in morally ambiguous choices, unravel the secrets hidden within the hearts of those around you, and confront your own past as you race against time to save your friends. Will you make the right choices or be consumed by the twisted desires of the organization?