Sword Art Online: Alicization Episode 12 -

: Cardinal reveals the history of the Underworld. She explains how Quinella , the first person to discover system commands (Sacred Arts), eventually "leveled up" her authority by hunting animals to the point where she could manipulate the world's very laws.

In , titled " The Sage of the Library ," the story shifts from intense combat to a major narrative revelation. After escaping their prison cell, Kirito and Eugeo are confronted by the Integrity Knight Eldrie Synthesis Thirty-one. Key Plot Developments Sword Art Online: Alicization Episode 12

Watch a detailed breakdown of the Library arc and Quinella's backstory: : Cardinal reveals the history of the Underworld