Alice Zuberg is the daughter of Rulid Village’s chief and a childhood friend to Kirito and Eugeo. During an expedition to the Mountain Range at the Edge, she accidentally trespassed into the Dark Territory, violating the Taboo Index. Captured by Integrity Knight Deusolbert Synthesis Seven, she was taken to the Central Cathedral. After two years, Supreme Priest Quinella deemed her suitable for transformation, and the Synthesis Ritual forcibly suppressed her memories, recreating her as Alice Synthesis Thirty, the thirtieth Integrity Knight. She wore ornate golden plate armor with a blue cape and wielded the Fragrant Olive Sword, which could disassemble into petal-like projectiles. As a knight, she became fiercely protective of Underworld, proud and reluctant to accept help except from deeply trusted individuals like Kirito or Commander Bercouli. When she arrested Kirito and Eugeo for breaking the Taboo Index, a confrontation on the Cloudtop Garden’s eightieth floor triggered her dormant memories, leading her to rebel against Quinella. After Quinella’s fall, Alice retreated to Rulid Village with the comatose Kirito, guarded by her sister Selka. A goblin assault reignited her resolve, and she joined the Human Guardian Army at the Great Eastern Gate, playing a pivotal role in repelling the Dark Territory’s invasion. Captured by the Dark God Vecta at the World’s End Altar, she was later rescued. Following the war, her fluctlight was transferred into an advanced android body in the real world, where she enrolled in the SAO Survivor School and adapted to human society, wearing casual attire like school uniforms while retaining her regal bearing. Pride and vulnerability intertwine in her character—she masks insecurities behind unyielding resolve, trusting only select allies, and lingering guilt over past failures haunts her stoicism. Her journey spans rebellion against divine authority, reclamation of fragmented memories, and navigating human reality, embodying struggles for identity and self-determination.