Mantras V is Mantares' largest moon and the second largest in the Fakula System. It is the only moon in the Fakula system with clouds and a dense, planet-like atmosphere. It is surrounded by an orange haze that keeps its surface a mystery.
Mantras V's atmosphere is active and complex, and it is mainly composed of nitrogen and methane. Mantares V also has a presence of organic molecules that contain carbon and hydrogen, and that often include oxygen and other elements similar to what is found in most habitable planets' atmospheres and that are essential for life.