Stan is Yonna's older brother, both orphaned in childhood. Possessing magical abilities deemed a curse, they faced persecution from villagers, forcing the siblings into exile. This shared trauma cemented their isolated existence.

Following exile, Stan takes on the mantle of Yonna's protector, dedicating himself wholly to her safety. They retreat to a remote fortress, living without neighbors or external contact. Stan's magic manifests as the power to throw lightning balls, a defensive skill he wields against perceived threats. His protective nature intensifies over time, curdling into extreme overprotectiveness marked by hostility towards any intruders near their sanctuary.

His method involves controlling every aspect of Yonna's environment and interactions, effectively imprisoning her within the fortress walls despite his stated goal of ensuring her safety. This dynamic fuels conflict as Yonna develops mixed feelings about her brother's methods. When agents of the Monarchy arrive to recruit Yonna, Stan meets them with lethal aggression. He launches violent assaults against both agents, Piggot and Galda, attempting to kill them to prevent any influence over his sister.

Stan's actions during the agents' visit showcase his unwavering commitment to isolation at any cost, ignoring Yonna's own perspective. His character remains defined by this singular focus on protection through force and separation from the outside world, showing no evolution beyond this entrenched stance.