第 9 集: 桐人無法登出，最大加速階段啟動
2020年9月6日 播出
The maximum-acceleration phase has begun. Alice successfully logs out of the Underworld, but Kirito doesn’t make it in time. In the real world, Higa and Kikuoka rush to shut down the STL, in order to disable the maximum-acceleration phase, but… (Source: Crunchyroll)