When Arata's peaceful existence is shattered by a catastrophic event known as the 'breakdown phenomenon,' he realizes his life has been a mere illusion controlled by a mystical grimoire. Presented with a choice by the mage Lilith Asami, Arata opts for a different path: enrolling in the secretive Royal Biblia Academy where he encounters the Trinity Seven, a group of enchanting magic wielders. Amidst the alluring company, Arata finds himself in amusing yet precarious situations. Motivated by memories of his missing cousin and dear friend, Hijiri Kasuga, Arata embarks on a quest to prevent world calamity and reunite with his cherished companion.