TV Special
Description
In the world of Fate/strange Fake, the Servant summoned under the Berserker class is an incarnation of Jack the Ripper, but not the historical serial killer himself. This figure is a conceptual being, an embodiment of the collective fear, mystery, and countless theories surrounding the infamous Whitechapel murders of 1888. Lacking a single true identity, this Servant is the very emblem of the Jack the Ripper legend, given form. Because the legend is a collection of rumors and guesses, the Servant does not know their own true name or even their original appearance, making their greatest wish to learn who they truly were in life.

The circumstances of this Servant's summoning are highly unusual. Their Master is Flat Escardos, an eccentric and immensely talented young mage from a Mediterranean family. Flat mistakenly used a prize from a video game, a replica knife marketed as Jack the Ripper's weapon, as the summoning catalyst. Paradoxically, this fake relic was a perfect catalyst, as the concept of a fake or unknown identity is central to the legend of Jack the Ripper.

Contrary to the expectations of the Berserker class, which typically trades sanity for power, this Servant is remarkably calm, rational, and even gentlemanly. This is explained as a case of double negation; because their fundamental nature is madness itself, summoning them as a Berserker results in a stable and lucid personality. Their speech is polite, refined, and often carries a poetic or sage-like quality, frequently acting as a straight man to their Master's erratic behavior. However, this stability is precarious. The seal on their Mad Enhancement is unstable, and there is always a risk they could lose their reason. The Servant's motivation for seeking the Holy Grail is purely existential: to discover their true identity and to understand the reality behind the legend they represent.

The core relationship is with their Master, Flat Escardos. It is an odd partnership defined by stark contrasts. The Servant is a being born of tragedy and mystery, while Flat is a cheerful, unpredictable young man who treats the Holy Grail War as a fascinating adventure. The Servant is often baffled by Flat's lack of decorum and unconventional decisions, such as wanting to sunbathe immediately after being summoned. Despite this, they work together effectively, and the Servant protects their Master while trying to guide his boundless curiosity. The Servant also develops a degree of respect for Lord El-Melloi II, Flat's professor, after a single conversation where the professor quickly understood the Servant's nature.

In the story, the Servant serves as one of the key players in the false Holy Grail War in Snowfield, America. They use their unique abilities for reconnaissance and infiltration, often trying to form alliances or gather information without resorting to open combat. At one point, they infiltrate a police station and agree to cooperate with Orlando Reeve, a Master who controls the local police force. Their role is less about direct confrontation and more about navigating the complex web of participants in the war.

This Servant possesses a set of abilities that directly stem from their conceptual nature. Their primary skill is Thousand Faces at rank A. Because the public speculated that Jack the Ripper could have been anyone, the Servant can transform into any person, animal, or object that was ever theorized to be the killer. This includes doctors, nobles, butchers, prostitutes, and even inanimate objects like a pocket watch. When transformed, they can also access the target's skills, albeit at a reduced E rank. They can even create multiple copies of themselves, a power formalized as their second Noble Phantasm, Natural Born Killers. This allows them to generate a large number of bodies, each of which is a potential true self. The maximum number of bodies depends on their Master's magical energy, and with Flat's considerable power, they can create hundreds of copies.

Their other Noble Phantasm is From Hell, a transformative ability based on the theory that Jack the Ripper was a demon. This allows them to turn into a powerful, five-meter-tall demonic being. The strength of this form is not fixed; it is fueled by the fear and unease of people within a five-kilometer radius. In a deserted area, it is only as strong as a large beast, but in a densely populated city, it grants the Servant power comparable to a top-tier martial Servant. This form also grants a special advantage against human opponents. A supplementary skill is Walker of Foggy Nights at rank B, which gives them a high level of Presence Concealment, making them nearly undetectable during the night. This combination of abilities makes this incarnation of Jack the Ripper an exceptionally effective infiltrator and a terrifying opponent in an urban environment.