: 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
: Kirito and Eugeo face Eldrie and his Frostscale Whip, which can split into multiple attacking segments. Eugeo recognizes Eldrie as a former champion of the Four Empires Unity Tournament, causing Eldrie significant mental distress as his suppressed memories attempt to resurface. : Cardinal reveals the history of the Underworld
