Aoi finds herself in a small underground bunker, one of the safe zones listed in the files. Inside, she discovers a small group of people—former test subjects who've also managed to escape their environments. They call themselves "The Runaways." Each person has a story similar to hers, but none of them have the same level of information Aoi possesses. Sharing what she's learned about the master code and the hidden network of facilities, Aoi convinces them to help her in a larger plan: to disrupt the experiment from the inside. They will free as many subjects as possible, but the risks are great. Some of the Runaways warn her that they've seen what happens when subjects try to rebel — many never make it past the first step.