Gespenst Zerlegen, operating under the alias Pele Poporo, serves as Lyne Mei’s seemingly unassuming subordinate in the Althean Royal Guard, masking his role as a covert high-ranking operative beneath a playful, easygoing facade. Sold by his parents in childhood for resources, his formative years bred a hardened pragmatism and distrust of others, fueling his talent for manipulating events to serve strategic ends.

As the "Pierce Baron" among the seven Legendary Red Barons, Gespenst wields combat clairvoyance—an ability to anticipate battlefield movements with lethal precision. After the Abandonment War, he established the shadowy Special Service under Schmelman Bach, orchestrating clandestine operations undisclosed to fellow Barons. Infiltrating the Gefängnis unit as Pele Poporo, he attempted to assassinate Jail Murdoch, only to fail when his target’s acute awareness exposed the plot. Forced to prolong his undercover role, he adapted to prolonged immersion within the group.

His persona evolves from superficially amicable to coldly utilitarian, willing to sacrifice obstructing allies for mission success. Yet loyalty to Lyne Mei remains unwavering, his concealed emotions gradually steering actions to shield her. Their dynamic shifts from guarded professionalism to romance, culminating in a shared vigil during Hina’s childbirth. Here, Gespenst insists on nurturing their bond before parenthood, revealing his capacity for vulnerability.

Key maneuvers include steering Lyne’s engagements with Licht Bach to advance objectives, combating adversaries like the Abyss Demon and Sonohara Mizuka, and later allying with Licht’s faction against Schmelman Bach. Dual allegiances as both Special Service leader and Gefängnis infiltrator strain group cohesion once his identity surfaces. These tensions resolve as he discards institutional loyalty for personal bonds, transitioning from a detached strategist to one anchored by emotional stakes.