Alice Zuberg

Alice (アリス・ツーベルク) is a secondary character in Alicization Beginning.

Alicization Beginning
In the beginning, Alice was a sacred arts apprentice under Sister Azariya, and she would bring lunch to Eugeo and Kirito 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 of the Dark Territory, looking up to see the dark knight fight the Integrity Knight. Shocked, Alice trips over herself, and she falls into the Dark Territory, hands brushing the land before Kirito and Eugeo manages to pull her back on the neutral land. Sacred Arts confirmed that she broke one of the laws in the Taboo Index, and the windows disappear before the trio made sense of it. Scared, Eugeo and Kirito runs home, carrying Alice. They sigh in relief when nothing turns up, until lunch the next day. The Integrity Knight had arrived, announcing that Alice broke one of the laws and he is going to try to execute her. Kirito attempts to rescue her, but Eugeo is frozen in fear and he does not manage to save her before she is taken away from the Integrity Knight.

Six years later, Eugeo and Kirito saves Selka from the goblins. While Selka transfer Kirito's life into Eugeo's dying body, Alice appears to Kirito and tells him that she is waiting for him at the top of Cathedral Castle. Her ghost then runs through Kirito and gives him enough life to save both of the boys.

It is stated in the side story, "There is but one ultimate way" that she becomes an integrity knight.