One day the brilliant crimson sun ceased to blaze, triggering what would be known as the "Breakdown Phenomenon"—the annihilation of Arata Kasuga"s village and the vanishing of its inhabitants. Yet not all was lost; with the enchanted tome gifted by his childhood friend and cousin Hijiri Kasuga, Arata rebuilt his reality through artificial means.
To probe this calamity, Lilith Asami confronts Arata as his fabricated world crumbles. She offers him a stark ultimatum: surrender the book or perish. Arata refuses and instead opts for a third path—joining the clandestine Royal Biblia Academy, where six other spellcasters await. Together with Lilith, these six become the Trinity Seven, the school"s elite who each amplify their own abilities.
Driven by a desire to rescue Hijiri and aided by his new allies, Arata will stop at nothing to halt the devastation of his cherished hometown and restore his closest friend.