Chōsosō is portrayed as a merchant who backed Liu Bei’s forces through financial support and strategic counsel, drawing loose inspiration from the historical figure Su Shuang—a patron of military endeavors—though the adaptation reimagines his persona and narrative significance.

Within the story, he forms ties to the Maozoku community through their mutual opposition to human oppression, frequently engaging the protagonist in political maneuvering that forces him to weigh pragmatic survival against ethical quandaries. His route in the second game centers on uneasy alliances with rival factions, sparking clashes that challenge his allegiance to the Maozoku’s ideals.

Over time, his role evolves from a secondary benefactor to a morally torn strategist, especially when personal aspirations conflict with communal objectives. A pivotal arc involves his orchestration of a contentious marriage alliance meant to bolster political unity, inadvertently fueling discord among his allies.

As warfare intensifies, his attempts to remain neutral unravel, forcing decisive actions that alter his reputation among humans and Maozoku alike. The sequel weaves ambiguous flashbacks suggesting past links to influential historical personas, leaving their exact nature undefined within the adaptation’s revised chronology.