Kirito, Eugeo, and Alice. Half a year has passed since two swordsmen-in-training and an integrity knight defeated the highest priest Administrator. Alice is now living in her hometown of Rulid Village after the battle. Beside her is Kirito, who has lost his best friend and his own arm and heart. Alice, who supports him with all her heart, has not retained the heart of a knight as before. "Tell me, Kirito... what should I do?" However, the countdown to the "final stress test" that will lead the entire Underworld to tragedy is advancing relentlessly. As if in response to this, in the depths of the "Dark Territory", the Dark God Vector has resurrected. He leads the army of the Dark Empire and begins to attack the "Human World" in order to obtain the "Priestess of Light". Bercouli and others who command the "Human World" army are determined to fight an unprecedented war with the "Dark Territory" army. But beside them, there is no sign of Alice or the two heroes who saved the "Human World". The final chapter of "Alicization", the longest and most gorgeous chapter in the "Sword Art Online" series, has finally been unveiled!