A girl is born carrying the secret to the end, and she is never allowed to live as she wishes. Her world is small and closed, her path is decided by someone else, and freedom stays a word she can only long for. If fate will give her no choice, she decides she would rather share her death with another girl than with the one who controls her, handing that girl half of her destiny. The story turns on two lives bound to one death and on the question of what lies past the horizon. A short-format fantasy TV series of 12 episodes from 2017, it is the first part of Square Enix's Dia Horizon multimedia project.