Ritsuka Fujimaru

Biodata

Feature	Information
Name	Ritsuka Fujimaru (藤丸立香)
Species/Race	Human
Gender	Female
Affiliation	Chaldea
Occupation/Role	Chaldea Master; investigator and repairer of Singularities
Status	Active
First Appearance	Chapter 112

Background

Chaldea recruited Ritsuka after discovering her compatibility for Spiritron Transfer when she went to donate blood. She was not a trained mage and possessed only limited Magic, but became Chaldea's Master after Lev Lainur's attack forced her and Mash Kyrielight to undertake the Grand Order. Before arriving in Fuyuki, the pair had already repaired six Singularities in their effort to preserve humanity 112 117.

Appearance

Ritsuka is an orange-haired young woman who commonly wears Chaldea's combat uniform during field operations 112 445.

• Orange hair.
• Carries a communication bracelet for contact with Chaldea 113.
• Bears Command Spells on her right hand 118.

Personality

Ritsuka is earnest, compassionate, and unusually persistent in seeking peaceful solutions. Even when confronting hostile or unpredictable Servants, she prefers to understand their motives and recruit them rather than immediately defeat them. This approach has allowed her and Mash to gather allies across multiple Singularities 288 460 495.

Although aware that she is only a mediocre mage, Ritsuka does not allow her lack of combat ability to stop her from acting. She repeatedly faces dangers that frighten her—including the First Hassan—when doing so may save an ally or strengthen humanity's chances of survival 359 362 364.

Abilities & Skills

Spiritron Transfer Compatibility

Ritsuka's compatibility with Chaldea's Spiritron Transfer system is the reason she was brought to Chaldea and enables her to enter Singularities on its behalf 117 270.

• Travels between Chaldea and Singularities through the Spiritron Frame.
• Can maintain contact with Chaldea through her communication bracelet when local conditions permit 113 288.
• Has endured repeated transfers and return phenomena after repairing Singularities 241.

Master of Mash Kyrielight

Ritsuka provides Mash with Magic during combat as Mash's Master.

• Supplies Magic to sustain Mash's Demi-Servant abilities 233 395.
• Coordinates with Mash in battle while usually remaining behind her defensive position 271 395.
• Uses her Command Spells in Servant-summoning rituals 118.

Servant Summoning

Ritsuka can perform the incantation and establish the Master-side connection for a Servant summoning, though her own Magic reserves are limited.

• Previous summoning attempts often failed and consumed her Magic 117.
• Jointly summoned Caster Gilgamesh with Fu Yuan, who supplied the required Magic 118.
• Forms contracts with Servants encountered during Singularities, allowing Chaldea to record their Magic and Spirit Origins for possible future summoning 158.

Gandr

Ritsuka's only stated Magecraft specialty is Gandr, also called a Yin Qi Bullet 362.

• A Rune Magic passed down in Northern Europe 362.
• Insufficient against enemies such as incorporeal ghost swarms, forcing her to rely on stronger allies 362.

Negotiation and Alliance-Building

Ritsuka's greatest practical strength is her ability to earn the trust of Servants and persuade potential enemies to cooperate.

• Helped convince the First Hassan to spare Cursed Arm Hassan and join the effort to repair the Singularity 364 365.
• Was entrusted by Fu Yuan with persuading Gilgamesh of Uruk to hear Chaldea's purpose 448.
• Helped persuade Ereshkigal to oppose the Three Goddess Alliance after recognizing the goddess's motives and remorse 508.
• Successfully recruited a lone Rider who initially insisted she would never serve anyone 521 522.

Equipment

• Communication bracelet — Maintains verbal contact with Chaldea during operations when a stable connection is available 113 288.
• Command Spells — Used as part of her authority as a Master and during Servant summoning 118.
• Chaldea combat uniform — Her standard field attire 445.

Relationships

• Mash Kyrielight — Her Demi-Servant and closest field companion. Ritsuka supplies Mash with Magic, while Mash protects her in battle; they have repaired numerous Singularities together 233 351 361.
• Fu Yuan — A powerful ally and guide who joins Ritsuka and Mash in their mission. Ritsuka comes to rely on his judgment, protection, and knowledge despite initially suspecting him of causing humanity's collapse 115 116 271 379.
• Romani Archaman — Chaldea's primary operational support. Ritsuka briefly becomes suspicious of his concealed past, but later learns of his relentless work for Chaldea and sincerely thanks him 382 383 409.
• Gilgamesh — Jointly summoned as Caster in Fuyuki. He initially refuses to take responsibility for saving the world, choosing instead to observe Ritsuka and Mash's growth before offering aid 118 119.
• First Hassan — A Grand Assassin who admires Ritsuka's unwavering heart and is notably tolerant of her bold manner of addressing him 364 365.
• Ereshkigal — An Underworld Goddess whom Ritsuka helps understand and recruit by acknowledging her motives rather than condemning her 495 508.

Story Role / Major Arcs

Fuyuki Singularity

Ritsuka and Mash arrive in an altered Fuyuki City expecting the usual Incineration of Humanity halo, only to find a world instead headed toward humanity's collapse. They are tasked with identifying and eliminating the cause 113.

She initially regards Fu Yuan as a possible culprit because he does not exist in Lord El-Melloi II's recollection of the Fourth Holy Grail War. After directly questioning him and accepting that he has no intention of destroying humanity, she forms an alliance with him and Artoria 115 116.

Using Fu Yuan's Magic, Ritsuka performs a Servant summoning that brings forth Caster Gilgamesh. Though he refuses to solve the crisis for her, he agrees to watch whether she and Mash prove worthy of assistance 118.

Sixth Singularity

Ritsuka enters the desert Sixth Singularity with Mash and Fu Yuan. She depends on Fu Yuan's protection against the hostile environment and powerful magical beasts, while continuing to seek alliances with local Servants and factions 269 271 272.

When the group learns that Ramesses II's possession of the Holy Grail is worsening the Burning of Human Order, Ritsuka still hopes for a peaceful resolution. She accepts that demonstrating strength may be necessary to earn his recognition and cooperation 288.

She supports the Mountain Dwellers, advocates for Cursed Arm Hassan, and personally proposes approaching the First Hassan rather than allowing Cursed Arm to face him alone 349 359 365. At the Atlas Institute, she and Mash become unsettled by Holmes's information about Romani, then confide in Fu Yuan about their doubts 381 382.

Seventh Singularity

Ritsuka is separated from Fu Yuan during the transfer to the Seventh Singularity but survives the fall because Mash uses her Noble Phantasm to absorb the impact 419 420.

After reaching Uruk, she acts as Chaldea's representative before King Gilgamesh and continues assisting the kingdom's people with everyday tasks while preparations against the Three Goddess Alliance proceed 448 484.

Ritsuka helps negotiate with Ereshkigal, answers the Underworld's gate questions honestly, and aids in bringing the goddess into their alliance 504 508. She later interprets the Tablet of Destinies, receiving a frightening vision related to King Solomon before Fu Yuan calms her with Vermilion Knight's Fire 514 515.