Characters from Goddess of Victory: Nikke.
A collective term used to refer to Nikkes that are mass-produced by the Big Three of the Ark, hence the name. Gameplay-wise, mass-produced Nikkes make up the R rarity of the Nikkes. There are numerous Mass-Produced Nikkes introduced in the game, notably the NPC one first introduced in the "Hightech Toy" event which is a generic NPC version introduced in later events.
The NPC version has brown hair and wears a visor which conceals their eyes along with medium breasts. They wear a green bodysuit with heel boots and a pair of black gloves. They are often seen holding a gun.