War of the Underworld is surprisingly lethal – for side characters. Bercouli’s sacrifice against Vecta is a high point: a veteran knight using time-manipulation powers to kill a god, at the cost of his own existence. But other deaths (Sheyta, Iskahn) happen so quickly they lose impact. The “link” to Eugeo’s death in Part 1 is clear: only deeply developed characters earn emotional payoff.
| Character | Type of Link | Why It Matters | |-----------|--------------|----------------| | | Broken link (trauma) | He cannot access his own sword skills until his link to Eugeo’s memory is restored. | | Alice | The linking witness | She is the first AI to cross the link into the real world (as a Light Cube). | | Asuna | The saving link | She links her 2-year waiting period to her avatar’s power to rescue Kirito. | | Vassago (PoH) | The corrupt link | He reverse-links SAO’s death game trauma into Underworld, turning it into a slaughterhouse. | | Eugeo (Memory) | The eternal link | Though dead, his residual link in Kirito’s Fluctlight provides the final sword skill. | sword art online alicization war of underworld link
Once the Link Gauge is , tap the Link icon (two crossing swords) on the active character. Then select a Link Partner from your party. War of the Underworld is surprisingly lethal –
Sword Art Online Alicization: War of Underworld – The Ultimate Link Between Worlds The “link” to Eugeo’s death in Part 1
War of the Underworld ends with Kirito, Asuna, and Alice returning to the real world. Underworld now operates at 5 million times speed – 200 years will pass in real-world minutes. Kirito and Asuna choose to stay behind to guide the new civilization, effectively living two extra lifetimes. When they finally log out, they’re mentally 200 years older (though the anime downplays this trauma).
His battle against Vecta is a highlight, showcasing the "nobility of the AI" as he uses his centuries of experience to defy a god-level administrator. Asuna’s Entry:
The show makes a controversial but bold choice to frame the foreign players (Chinese, Korean, American) as an invading force attacking Underworld. It’s an uncomfortable but intentional commentary on nationalism, account security, and how virtual wars can have real casualties. The “link” here is to SAO’s recurring theme: the line between game and reality is dangerously thin.
