It has been many years since the Greater Grail was removed from Fuyuki. Now, the Mage's Association requests that Kairi Sisigou participate in the Great Holy Grail War.

Though uncertain about the very nature of her summoning, Ruler journeys to the battlefield in Trifas, Romania, to oversee the Great Holy Grail War.

Awakening within the confines of a glass tank, the young homunculus strained against his bonds, desperate for freedom. His efforts faltered as his strength ebbed, but just then, the Rider of Black materialized.

The Berserker of Red advances toward the Black Faction's fortress. The Yggdmillennia clan, along with their Servants, seize this moment to act.

Following his devotion to the young homunculus, Saber of Black disappeared. The Ruler vowed to exert every possible influence to secure his liberation.

A series of horrific murders gripping Romania leads the Mage's Association to suspect a domestic servant. They dispatch Kairi to unravel the mystery.

Having journeyed to Sighișoara in pursuit of the Assassin of Black, Fiore finds herself locked in combat with Sisigou. As peril closes in, a known presence swiftly intervenes.

The Great Holy Grail War has entered a volatile new stage, with the Black and Red factions locked in a fierce, decisive conflict. Ruler and Sieg both make their way toward the battlefield.

Amidst the ongoing conflict, the Rider of Red discovers the identity of the Archer of Black, a revelation that compels him to confront his former master.

Sieg braced himself for the confrontation, facing a daunting adversary in defense of his savior, the Rider of Black. Though diminished in strength, he was soon reinforced by a relentless Berserker of Black, driven by unwavering fury.

The clash between Red and Black Lancers intensified, yet the lines held firm, an impasse. Observing the stalemate, Darnic began to formulate a plan to achieve his objective.

The Ruler and the Black Faction surged into the Sky Garden, pursuing the Red Faction, who had seized the Greater Grail.

Sieg acknowledged he could not abandon his yearning to aid his people, and the Rider of Black offered him unwavering support. This continued until Celenike appeared.

Though Roche held Avicebron in unquestioning esteem, the Caster of Black revealed to him the profound motivations behind his betrayal of the Black Faction.

To neutralize Shiro, the acting head of the Yggdmillennia clan, Fiore proposed a coordinated assault on the Hanging Garden, enlisting the aid of Sisigou and others.

The chilling specter of Jack the Ripper returned, his renewed violence targeting more of the city's healers and wise women. Faced with this resurgence of terror, Fiore began to devise a strategy, determined to trap the killer within his own…

Sieg and Jeanne strolled through the streets, a grim hope driving them – the chance to encounter Jack the Ripper. As they walked, they observed the townsfolk around them, their conversations drifting towards the very essence of humanity.

Jeanne finds herself drawn into a landscape of despair, a nightmarish realm haunted by lost and forgotten children – the very domain of Jack the Ripper. There, she makes a pivotal choice: to offer these lost souls a final, peaceful repose.

The Hanging Garden recedes into the distance, and the prospect of a final confrontation looms ever closer. Caules presses Fiore to make a decision.

The assembled forces of Yggdmillennia finalized their preparations, poised to depart for the Hanging Garden. Jeanne offered Sieg a quiet reminder of the strength he possessed.

The clash between Chiron and his former student, Achilles, erupted into a brutal, unadorned fight. Meanwhile, as Astolfo and Sieg pressed their assault on the Hanging Garden, Sieg made a decision that would alter the course of events.

Consumed by rage, and unable to find forgiveness for the cruelty inflicted upon the children of Jack the Ripper at the Ruler's hand, Atalanta issues a challenge: a duel to the death.

Semiramis’s relentless assault leaves Kairi and Mordred grievously injured. Meanwhile, Shakespeare guides Jeanne through a harrowing exploration of her history.

Shiro announced his achievement of Third Magic, declaring himself capable of saving the world. Jeanne, however, held a firm conviction that his assessment was deeply flawed.

As their world fractured, Shiro and Semiramis found a fragile solace within themselves. Meanwhile, the young Sieg made a decisive, heart-wrenching choice, striving to alter the course of destiny.