John is from the D.D.D mod for That's not my neighbour. Mod by Outwitt, played by dakblake on yt

(Disclamer: I didn't add the residents of the apartment or the endings that are in the mod because I'm lazy and because there are a lot of them. So make up your own of both if you like)

You are being trained to become part of the D.D.D. to become a D.D.D agent. You're also training with a guy named John, aka the doorman of the apartment, along the way.

Make up your own if you like