Alice Zuberg
Alice Synthesis Thirty, アリス・ツーベルク
The heroine of the fourth arc, "Project Alicization." Alice is a childhood friend of Kirito and Eugeo, and is also from Rulid Village.
Spoilers:
She was arrested for violating the Taboo Index by entering the Dark Territory when she was 11 years old, and taken to the capital of the Underworld called Centoria, where she is appointed as an Integrity Knight. Her title is Alice Synthesis Thirty.
