Ritsuka Fujimaru, colloquially dubbed Gudako in parody contexts, manifests as a chibi-stylized iteration of the female protagonist, sporting vibrant orange eyes and short red hair tied into a side ponytail. Her perpetually blank, open-mouthed grin contrasts with attire ranging from the standard Chaldea uniform to its Arctic counterpart, occasionally stripped down to minimalist garb. Notoriously volatile, Gudako’s behavior orbits an all-consuming fixation on gacha mechanics, sidelining critical missions to obsessively farm resources or chase event rewards. She routinely berates Servants, discards lower-rarity allies, and schemes relentlessly to hoard Saint Quartz for gambling sprees. Driven by naked self-interest, Gudako dismisses humanity’s survival as secondary to her whims. Her interactions with Mash Kyrielight and Olga Marie Animusphere spiral into a toxic dynamic rife with persistent sexual advances and delusional fantasies of infidelity between the two, framing a warped romantic entanglement. Progression through pivotal story arcs occurs only under duress—such as threats of abandonment—or when lured by tangible rewards, exemplified by her belated involvement in Part 2 narratives after Mash’s potential exit looms. Combat strategies devolve into frivolous Command Spell expenditures, enforcing Servant costume swaps or dictating speech patterns. Temporary pacts, like one with Jeanne d’Arc, hinge on transactional goals to tarnish sacred iconography or extract personal gain. Chaldea itself morphs under her influence into a chaotic maze designed to stalk Mash, prioritizing amusement over functionality. Even near-death crises or trauma-induced recoveries swiftly revert to destructive antics, from devouring Servant larvae to orchestrating manipulative pranks. Gudako’s narrative function thrives on lampooning heroism through chaotic neutrality, defying Chaldea’s repeated attempts to oust her via inexplicable survival tactics and repurposed defeats. Parodic flourishes pierce the fourth wall, mocking gacha frustrations or unskippable Noble Phantasm sequences. This incarnation deliberately diverges from her main-series counterpart, trading moral nuance for relentless absurdity and unrepentant disorder.