Long ago, the Moon Goddess and her devoted flower prince shared a secret, magical love they treasure dearly. On their special day, she passed her wish to the prince, a promise to reunite forever and eternal. In the present, high schooler Starry has dreams of a beautiful woman in a flower field, a fragmented memory that fills him with a yearning to see her once more. Selene, a college student, lives a charmed life until a chance meeting at a train station awakens forgotten memories. The past unveils the truth of their past lives. Together, they aim to rediscover their true selves and revive their fairytale.