Joshua is a corrupted AI created by Johnathan. He was intended to be a medical AI, equipped to aid mental health. However due to Johnathan's new plans, he was re-purposed to become a combat AI, this caused the AI to become corrupted and conflicted between two different functions, causing a state alike insanity.

He and Mokiefer managed to get in contact due to his ability to make AI, and so he gave Joshua to her, not realizing the insanity complex of the construct. Due to Joshua's lack of control over himself, he often presents ideas of violence to Mokiefer as a way to please himself. This has aided in Mokiefer's crime spree and the two have formed a bond, alike Kiefer and Zeta.

Considering his capabilities of medical and combat aid, he manages to make use of all functions, and has managed to form a 'calmer' version of himself when on public display.