Three Tokyo university students discover they're not alone in their strangeness. Miyako, Haruka, and Keiichiro share something impossible: magical abilities that have always set them apart from ordinary life. When a chance meeting brings them together one fateful night, a door materializes before them. Stepping through it shatters their reality. On the other side waits a world crying out for salvation. Miyako learns she carries a hidden identity, one bound by destiny and royal blood. Her true self holds the only power capable of standing against Duran III, a tyrant whose grip chokes the life from an entire civilization. Now she must choose between the safe mundanity she knew and the weight of a crown she never wanted. Haruka and Keiichiro find themselves caught between two worlds alongside her. Together they face impossible odds, ancient magic, and the question of whether outcasts from one reality can truly become heroes in another. The door has closed behind them. There's no going back to who they were.