Chihiro Ikeno, who was supposed to have a happy wedding, loses her memory in an accident just before the ceremony. She wakes up in the room of a stranger, confused about everything, knowing only that she was supposed to get married on June 19. As she investigates her past, unexpected truths come to light and the situation takes an unforeseen turn. While struggling with fear of regaining her memories and the shock of the truth, the amnesiac bride gradually uncovers her past and grows stronger.