Though Eugeo perishes prior to the war, his link to Kirito remains intact through the Blue Rose Sword and Kirito’s fragmented psyche.

The season is not perfect. The pacing in the middle episodes can drag slightly as the armies maneuver. Additionally, the antagonist, Gabriel Miller (a.k.a. Vecta), is a bit one-note. He is undeniably terrifying and serves as a strong villain for the plot, but his motivations are rooted in a somewhat cartoonish obsession with souls and darkness compared to the more complex antagonists of earlier SAO arcs (like Kayaba Akihiko).

Furthermore, the series still leans on the "power of friendship" trope to resolve the climax. While executed better than usual, cynical viewers may find the final power-ups a bit convenient.

Perhaps the most emotional link is the reunion of SAO’s cast. For two cours (48+ episodes), Kirito was isolated in Underworld. War of Underworld links him back to:

The War of Underworld arc represents the climax of the Alicization saga, shifting the focus from the exploration of a digital civilization to a desperate struggle for its survival. This paper analyzes the concept of the "Link" in three critical dimensions: the System Link connecting the Underworld to military servers, the Interpersonal Links of memory and soul (Fluctlights), and the Inter-World Link that allows physical intervention from the real world. By examining these connections, we explore how the series redefines the boundary between "Real" and "Virtual" existence.


Unlike other SAO arcs (Aincrad = survival, Fairy Dance = rescue, GGO = mystery, Mother’s Rosario = legacy), Alicization and especially War of Underworld is about connection.

The final scene of War of Underworld, where Kirito links his real hand with Alice’s Light Cube vessel, is the thesis statement of the entire series. A link is not a constraint—it is a choice.

If you intended to find a specific external article or wiki page with the exact title "Sword Art Online Alicization War of Underworld Link," it is likely a redirect or a disambiguation page on the SAO Wiki pointing to the "War of Underworld" arc summary or the "Underworld" location page. This analysis serves as a comprehensive alternative to those basic summaries.

Here’s a detailed, in-depth review of Sword Art Online: Alicization – War of the Underworld (specifically focusing on its connection to the broader Alicization arc and how it functions as a sequel, not to be confused with the mobile game Alicization Blading or the upcoming Last Recollection).


For the most up-to-date information, note that Alicization Lycoris is no longer the newest "Link." In 2023, Bandai Namco released Sword Art Online: Last Recollection.

Last Recollection is a direct sequel to Lycoris that covers the War of Underworld and Moon Cradle arcs with significantly better graphics and performance. It acts as the "final link" in the Alicization game timeline, providing a definitive ending for the game-original characters (Medina) alongside the anime cast.

While Lycoris is still excellent, if you want the most polished "Link" to War of Underworld in 2024-2025, play SAO: Last Recollection instead. It fixes the frame-rate issues of Lycoris and offers a more cinematic retelling of the war.

Once unlocked, you’ll see a Link button on the battle UI when the gauge is full.