TV Special
Description
Ritsuka Fujimaru serves as a Master for the Chaldea Security Organization, tasked with completing Grand Orders to restore the Human Order. Their name and gender are customizable, leading to fan nicknames "Gudao" for the male version and "Gudako" for the female. As a self-insert character, their background remains sparse; they joined Chaldea after incidentally encountering a recruitment flyer, despite being a civilian lacking prior magical training or combat experience. This ordinary origin positions them as an initially unremarkable candidate, described as someone who "shores up numbers" among Master candidates. A notable childhood memory involves befriending a reclusive World War II veteran neighbor during junior high, whose perspective on finding meaning in life without grand rewards influenced their outlook. Supplementary material notes participation in their school's volleyball team, with their age generally depicted as late teens, specifically 16-17 during certain memory-based sequences.

Physically, they exhibit an average build, the male version showing more visible musculature. Mash Kyrielight describes them as medium height. The male iteration has short, unkempt black hair and blue eyes, while the female version sports shoulder-length red hair tied in a left-side ponytail with a yellow hairband, light orange eyes, and a cowlick. Command Spells appear on their right hand, differing in design between genders. They utilize numerous Mystic Codes—magical outfits granting specific abilities—including the Chaldea Standard Uniform, Chaldea Combat Uniform, Mage's Association Uniform, Atlas Academy Uniform, Anniversary Blonde, and others tailored for environmental or situational needs like arctic conditions or summer events. These outfits enable supportive magecraft such as healing, stat enhancement, evasion, curse projection, status purification, or command spell shuffling.

Their alignment is Neutral Good, though antagonists like the Lion King characterize them as a soul that "knows good but commits evil, and allows evil while being good," a sentiment echoed by James Moriarty. They exhibit high empathy and an exceptional aptitude for forming contracts and emotional bonds with Servants, including those with unstable or morally ambiguous natures. Descriptions highlight their composure under pressure, noted early during the Fuyuki Singularity when they remained calm while others panicked. Olga Marie Animusphere assessed them as "quiet, but with some nerve," while Sasaki Kojirou observed an absence of typical mage pride. Quetzalcoatl commended their discipline and earnestness, and Mash emphasized their adaptability to extreme or bizarre scenarios. Meltryllis valued their kindness and willingness to extend trust without expectation. Their perseverance is repeatedly tested, particularly during the Russian Lostbelt, where they grapple with profound guilt over erasing worlds to save their own, leading to paralyzing moral conflict temporarily resolved by Patxi's sacrifice. This trauma lingers through subsequent Lostbelts, though they persist in fighting for humanity's future, inspired by Dr. Romani Archaman's example.

As a magus, their innate capabilities are modest, requiring Mystic Codes to execute spells. Their unique strength lies in maintaining an unprecedented number of simultaneous Servant contracts—nearly 300—far exceeding the norm of one per Master per battle. This feat stems from their social influencing skills, described as having 100% Master compatibility, enabling alliances with even former adversaries. They possess supernatural luck, often encountering fortuitous interventions or summoning precisely needed Servants. Resistances include immunity to poison and disease (a boon from their contract with Mash), tolerance to high mana concentrations, and partial resistance to mental effects like Suzuka Gozen's Mystic Eyes, though they remain vulnerable to god-level charms or dream-based manipulation. Physically, the male version demonstrates athleticism, performing feats like kicking armored soldiers or enduring impacts at high speeds. They have also learned practical skills such as ninjutsu from Fuuma Kotarou, including substitution techniques.

Across adaptations, their portrayal varies. Serious depictions like the Babylonia anime emphasize leadership during crises, tactical coordination with Servants, and moments of vulnerability, such as flashbacks to Olga Marie's death. In comedic or non-canonical spin-offs like "You've Lost Ritsuka Fujimaru," they are exaggerated into a ditzy figure causing logistical mishaps. Narrative arcs explore their moral evolution, particularly in the Lostbelt saga where destroying alternate timelines forces introspection on sacrifice and survival. Personal interests surface intermittently, including enthusiasm for mecha culture, magical girl genres, and historical figures like Ushiwakamaru, whom they idolized in childhood.

Their relationship with Mash Kyrielight is foundational; she views them as a "senpai"—an upright human who strives without innate superiority—and their dynamic blends mutual reliance with protective instincts. They comforted her during near-death experiences. Figures like Cú Chulainn encapsulate their essence as "the most human of humans" for their resilience and capacity to inspire hope against impossibility.