The "War of Underworld" sub-arc is divided into two main parts:
Episodes 25–47 (often split into Part 1 and Part 2). Plot Arcs & Synopsis Sword Art Online: Alicization - War of Underworld
To fully understand War of Underworld , you should follow this sequence: The "War of Underworld" sub-arc is divided into
Sword Art Online: Alicization - War of Underworld is the climactic second half of the Alicization arc, adapting volumes 15–18 of the light novels. This guide covers the essential watch order, plot arcs, and key characters. Sword Art Online: Alicization - War of Underworld
Episodes 1–24. Ends with the battle against Administrator.
Canon film that introduces technology and characters relevant to Alicization .