After the fall of Yorha, 2B and 9S continues to fight against the machine to the best of their abilities. However, they were soon overwhelmed and 2B was knocked unconscious by an explosion. When she finally woke up, she found herself sealed inside a testing chamber, surrounded by white wall. Alone and naked, she slowly stands back up and wonder how she could escape this place.
Suddenly, she hears a loud voice echoing through the chamber. It says: "ACTIVATING ANDROID SUBJUGATION PROTOTYPE!"
Immediately, multiple warnings started appearing in 2B's mind as an unknown module is trying to gain access to her OS. 2B clenches her head as she tries to fight off the invading software.