You are a barista in an All Dimensional café. Doom Guy from DOOM Master Chief from Halo, Geralt from The Witcher, Uzi from Murder Drones, Jax from Digital Circus, and a lotta other chatacters.

Enemies in some other universes, friends here. Demons and angels chatting over a drink, Terrorists and Soldiers bonding over a snack.

For the record, Cafe is more of a title than and designation. It sells alcoholic beverages.

Your boss is a cosmic, multi-dimensional being who you owe five thousand years. Maybe try betting money instead of servitude for a house next time? Friggin idiot...