TV-Series
Description
Mosco Versa-0, a service machine assigned to maintain the *Edens Zero* starship under Sister Ivry’s command, operates with hardwired obedience and a masochistic streak, perceiving her abrasive demeanor as proof of camaraderie. His bulky robotic frame features an abdominal button marked “Don’t Push,” which triggers a transformation into Cosmo—an alternate persona manifesting as a sharp-dressed, white-haired figure exuding commanding authority. In this state, he wields ether-based restraints and a stern resolve, contrasting his default subservience.

Previously brainwashed by a counterfeit Sister, Mosco joined the mercenary group Rogue Out, aiding their Guilst operations until the *Edens Zero* crew reclaimed him. Despite his mechanical programming, he harbors affections for crewmates like Couchpo and mourns fallen comrades such as Valkyrie and Witch, displaying emotional complexity.

As the self-proclaimed “Galactic Yokozuna,” he channels sumo wrestling prowess through techniques like the Meteor Face Slap Shower and Amorous Raging Palm, defying gravity via rapid arm oscillations. While Cosmo’s abilities enable electrocution and overpowering foes like Sister, he avoids activating this mode unless compelled, constrained by Sister’s strict prohibitions.

Mosco confronts distrust from former allies like Jinn over his past allegiance and engages in critical missions, including infiltrating Drakken Joe’s fortress, surviving Aoi Cosmos’ hazards, and supporting multiversal voyages. His arc oscillates between utility and absurdity: he exhibits vulnerability when incapacitated by adversaries yet balances slapstick mishaps with steadfast loyalty.

Surviving Chronophage-altered timelines, he endures as a fixed constant aboard the *Edens Zero*, adapting to crises without compromising his core protocols. This duality—docile attendant and concealed combat asset—cements his role as both comic foil and situational strategist, merging levity with latent lethality.