Alice Zuberg

Alice (アリス・ツーベルク) is a secondary character in Alicization Beginning and the childhood friend of Eugeo and Kirito (during his first dive into Underworld).

Alicization Beginning
In the beginning, Alice was a sacred arts apprentice under Sister Azariya, and she would bring lunch to Eugeo and Kirito at the Gigas Cedar every day. On a quest to find ice at the «Mountain Range at the Edge» to make their lunches last longer, they take a wrong turn in the cave and turn up into the edge between the Human World and the Dark Territory. Looking up, they see a battle between a Dark Knight and an Integrity Knight. Seeing the Dark Knight dying after he crashed into the ground near the children, Alice trips over herself while trying to reach the dying Knight to help him, and she falls, her hands brushing the soil of the Dark Territory before Kirito and Eugeo manage to pull her back onto the neutral land. Sacred Arts confirmed that she broke one of the laws in the Taboo Index, and the window disappear before the trio made sense of it. Scared, Eugeo and Kirito run home, carrying Alice. They sigh in relief when nothing turns up, until lunch the next day. An Integrity Knight arrives, announcing that Alice broke one of the laws and he is going to take her to the Central Cathedral to interrogate and execute her. Kirito attempts to rescue her but is stopped by the town people, and Eugeo is frozen due to his inability to go against the law and he does not manage to save her before she is taken away by the Integrity Knight. In the period of two UW days, Alice arrives at the Central Cathedral and some form of "correction" is applied to her Fluctlight.

Six UW years later, Eugeo and Kirito save Selka from the goblins, but Eugeo is greatly injured in the process. While Selka transfers Kirito's life into Eugeo's dying body to save him from dying, Alice appears to Kirito and tells him that she is waiting for him at the top of Cathedral Castle. Her spirit then runs through Kirito and gives him enough life to save both of the boys.

Alicization Turning
Alice makes an appearance as the Intergrity Knight that arrests Eugeo and Kirito after they break the Taboo Index and takes them to the Central Cathedral. She refers to herself as "Alice Synthesis Thirty," and it seems that she does not recognize them as her childhood friends. She also threatens them by saying that she had permission to decrease their life by 70% when Eugeo tries to touch her. Kirito theorizes that the Integrity Knights and the Axiom Church may have some means of manipulating or erasing memories.

Trivia

 *  In the original web novel, Alice's name after becoming an Integrity Knight was Alice Synthesis Fifty, which designated her as the fiftieth member to join the Integrity Knights. In the light novel, her name was changed to Alice Synthesis Thirty, thus making her the thirtieth member to join.