Board Thread:Questions and Answers/@comment-4837344-20170916052345/@comment-109.220.232.218-20200701153039

In volume 18, we clearly understand what happens.

Alice is an IA that has been grown in Underworld (born from IA parents..), she has always though that she is human until Kirito reveals her the truth (during the cathedral fight).

Gouvernemental organisations want to use her wonderfull adaptative power for combat. this is why after the IA has been matured enough in the underworld they intend to extract it and dump it into an artificial body in the real world.

at the end of the war in the underworld, fluctlight cube of Alice IA is extracted and then inserted in a very advanced android body that looks like Alice. Regretfully it is not a human body, Alice is a cyborg.Her body is composed of a metallic skeleton covered with very advanced silicon skin, it features tears, and sweating capabilities.