Kirito (Comatose → Awakened). In a catatonic state due to the shock of losing Eugeo. He is a hollow shell, barely reacting and unresponsive to calls. However, he is not completely broken; he reacts slightly to the voices and strong emotions of his friends. He awakens after passing through stages of no reaction, slight reaction, and fragmented speech. After awakening, he regains his overwhelming combat power and judgment, picking up his sword once more to protect his comrades.

A sniper who joined the battle using a Sun Goddess account. With light blue hair, she is calm and possesses excellent analytical skills, accurately grasping and supporting the battle situation from a long distance. She is reticent but has a strong will within her, and her desire to support Kirito is her reason for fighting. She takes down enemies reliably with precise shooting. Her real name is Shino Asada. She logged into the Underworld as the Super Account Sun Goddess Solus. She uses a bow. Sometimes it transforms into her favorite gun, Hecate II. She is friends with Leafa and Asuna.

Kirito's younger sister, Suguha Kirigaya. Blonde hair. As the Earth Goddess, she handles wide-range healing and support. She is kind and caring, with a strong belief in never abandoning anyone. She supports her comrades with the action and resolve to stand on the front lines regardless of danger. She logged into the Underworld as the Super Account Earth Goddess Terraria. She uses a one-handed sword. She is friends with Sinon and Asuna.

A girl fighting as an Integrity Knight. She is proud and has a strong sense of responsibility. She continues to fight on the front lines with the mission of protecting Kirito in her heart. A reliable warrior who carves a path through the battlefield with high swordsmanship and an unwavering will. Moved by Kirito, she defeated Administrator and now lives with him. Her real name is Alice Synthesis Thirty.

A page who served Kirito during his time as an Elite Disciple. Kind-hearted and reserved, but deeply cares for her friends. Though inexperienced in battle and harboring fear, she has the strength to face forward without running away. She grows by accumulating small acts of courage. Now, she stays by Kirito's side to protect him. Her real name is Ronie Arabel.

A page who served Eugeo during his time as an Elite Disciple. Ronie's best friend. Bright and honest, she is a presence that encourages her comrades. While feeling anxiety and fear, she fights by supporting Ronie. A devoted girl who possesses both kindness and courage. she held feelings for Eugeo. Now, she protects Kirito alongside Ronie. Her real name is Tiese Schtrinen.

The leader of the enemy who appears as the Super Account Dark God to reclaim Alice. A cold-blooded individual with an abnormal obsession with souls. He has little emotion and treats others like tools, but his madness and tenacity are overwhelming. A presence that brings terror to the battlefield. A Real World human. His name is Gabriel.

Real name is Vassago Casals. In SAO, he belonged to Laughing Coffin. An instigator who fans human malice and hatred, leading the battlefield into chaos.