Sword Art Online - Season 4 (2019)

The mysterious group that attacked the Ocean Turtle turns out to be a secret unit under orders from the U.S. National Security Agency. And its leader, Gabriel, has battled Kirito and Sinon before.

Shasta, commander of the Dark Territory's dark knights, had intended to use Administrator's death as a chance for peace with the Human Empire. But his plans are thwarted by Emperor Vecta's return to the land of darkness.

Resolved to fight for humankind, Alice joins the forces of the Human Empire, bringing Kirito with her. But while the forces of darkness boast overwhelming numbers, only thirteen Integrity Knights are available to fight for the Human Empire.

The Final Load Test has begun, and the Eastern Gate has collapsed. Incited by Gabriel, now Emperor Vecta, the massive army of the land of darkness pushes on towards the Human Empire.

Integrity Knight Renly Synthesis Twenty-Seven, in battle for the first time, flees his position, allowing goblins from the forces of darkness to infiltrate to the tent where Kirito is.

The powerful formal art unleashed by the Integrity Knight Alice inflicts severe casualties on the forces of darkness. Alice encounters an enemy survivor and learns that Emperor Vecta's objective is to find the "Priestess of Light."

Upon seeing Alice, Gabriel orders his entire army to capture her. The pugilists guild races ahead of the main force. As Alice and Bercouli try to come up with a strategy to counter them.

Asuna has logged into the Underworld using the superuser account of Stacia, the Goddess of Creation. After she descends, she is reunited with Kirito, thanks to Ronie and Tiese. But soon Alice arrives, leading to a precarious situation.

Asuna has created a bottomless chasm. The dark knights and the pugilists attempt to cross over to the other side, where the Human Empire Army waits.

Gabriel gives U.S. players access to black knights, unleashing a bloodbath across the Underworld.

The ice sniper from Gun Gale Online, Sinon, successfully logon into Underworld using a super account Solus, the goddess of the sun, to help Asuna and Kirito inside the Underworld against tons of Crimson Army and The Dark Knight.

Despite its modest size, the Human Empire Army and Asuna valiantly battle the wave of American players surging towards them. But they're hopelessly outnumbered, and the Human Empire soldiers start to fall one after another.

Bercouli pursues Vecta, who's abducted Alice. After a long, vicious battle, Bercouli unleashes his secret sword skill, Uragiri, and finally defeats Vecta, despite having sustained severe injuries himself.

The traitor inside Rath turns out to be researcher Yanai, who tries to stop Higa from restoring Kirito by holding him at gunpoint; Sinon confronts Gabriel in the Underworld.

Asuna and the others succumb to Vassago. Discovering the catatonic Kirito, Vassago kicks his wheelchair over. Enraged, Klein lunges at Vassago, only to be pinned down by enemy players. Just then, someone unexpected appears.

Sinon severely damages Gabriel, but her strength has been sapped; Leafa collapses after wiping out the American players; her situation now hopeless, Asuna stares as Kirito; the Black Swordsman continues to wander through his dreams.

Escaping his nightmares, Kirito regains consciousness at last. With the Night-Sky Blade in his right hand and the broken Blue Rose Sword in his left, he faces off against Vassago, armed with the Mate-Chopper, now enormous in size.

Alice and Asuna head to the World's End Altar as Kirito confronts Gabriel. Unless he can defeat Gabriel and return to the real world before the maximum-acceleration phase begins, Kirito will have to spend the next 200 years in the Underworld.

The maximum-acceleration phase has begun; Alice successfully logs out of the Underworld, but Kirito doesn't make it in time.

The "Rath Attack Incident," masterminded by the American National Security Agency, is over.

Rinko informs Kazuto that Alice is missing. He's about to rush to the Rath Roppongi branch when the doorbell rings. In a panic, Kazuto throws open the door, only to find a deliveryman there with a huge cardboard box.

A solo player from ggo with white hair, blue and black outfit and yellow eyes with a dark and rich life with a hero name of daring charming or the night hawk with in her opinion is not deserving from all the deaths she has saw and soon rejects the crew because she didn't want to die as asuna and leafa stepped up to the plate taking her in