Based on Volume 14 of the light novel series, Alicization Uniting .
In a strategic move, Eugeo uses his Blue Rose Sword to freeze both Kirito and Alice in ice. Sword Art Online: Alicization Episode 21
For more detailed discussion and community reactions, you can visit the Alicization Episode 21 Discussion Thread on Fandom. Sword Art Online Alicization Episode 21 Based on Volume 14 of the light novel
Eugeo ascends to the 100th floor to face Quinella (the Administrator) alone. He feigns loyalty to get close to her, but his attempt to assassinate her is blocked by a protective barrier that shields her from metal weapons. Sword Art Online Alicization Episode 21 Eugeo ascends
Kirito attempts to reach Eugeo’s suppressed memories while their swords clash. Although Eugeo is under the control of a "piety module," his bond with Kirito causes him to hesitate as original memories begin to resurface.
, titled "The 32nd Knight," marks a pivotal turning point in the Alicization arc as Kirito and Alice confront a brainwashed Eugeo at the top of the Central Cathedral. Plot Overview
The episode focuses on the emotional and physical clash between the two lifelong friends, Kirito and Eugeo, who has been turned into an Integrity Knight by the Administrator.