Pue'nu (Kyuk'ya 1a) is the moon of Kyuk'ya I, Xi'an Empire. During the Xi'an-Human Cold War, it was the site of a Xi'an military base that was used as a launch point for scouting missions into United Empire of Earth (UEE) territory.
In SEY 2798, a few years after the dissolution of the Perry Line, the Xi'an government converted the base into a hub to facilitate trade between the Xi'an Empire, the Banu Protectorate, and the UEE. The free contact between these civilizations has fostered the emergence of a Xi'an youth movement that rejects traditional values and embraces trends from other cultures.