For Akane, his father meant the world, so he cannot understand why Aoto would kill his own parents. However, Aoto does not share his story either. The colliding two run into each other later, when a patrol Driver suddenly starts to malfunction.

Concerned about Aoto's emotional disconnect, Akane and Midori look him up on the academy server, but his information were classified. Determined, the two steal Undine's access pass and finds out that Aoto is a suspect of the Blue Christmas massacre.

Akane and the team go to an abandoned section for special training. During the latter part of their training, they meet a group called "The Defiers." Hybrid of human and animals, they have super strengths, and begins attacking Akane and the team.