The Duke's daughter Anastasia is a former OL who reincarnated into an Isekai as the Villainess of an Otome Game. During the graduation Party, in the middle of receiving a marriage annulment and condemnation, the ship sinks, and she drifts to a deserted island. There, she encounters the First Prince who went missing 10 years ago. He has lost his memories, and his heart remains that of a pure boy. Through their communal life on the deserted island, the two begin to connect their hearts. Will Anastasia be able to carve out a new destiny in this Isekai? An ups-and-downs Survival Love Comedy begins now!