The film’s story begins when Arata inadvertently touches “Hermes Apocrypha,” Lilith’s Grimoire. Suddenly, he is enveloped by a bright white light, and a girl appears before him. She calls herself Lilim, and treats both Arata and Lilith as her parents. At the same time she appears, something changes in the world. The forbidden Eternal Library awakens. In the Library is sealed the ultimate culmination of Alchemy, the White Demon Lord. The White Demon Lord plots to eliminate Arata and the Trinity Seven to usurp the position of Demon Lord. Bristling with untold power, the White Demon Lord attacks Arata, and triggers a desperate crisis where Arata and the Trinity Seven must save the world in this last battle.

People everywhere were enjoying a new game called Ordinal Scale, an ARMMORPG developed exclusively for the Augma, a new wearable console designed for AR (augmented reality) gaming. But, the players had no idea that a nightmare from the virtual world was starting to spread into reality! As his fellow players find themselves in danger, the hero is called upon once again.