Berserker of Black

Berserker of "Black" ("黒"のバーサーカー) is the Berserker-class Servant of Caules Forvedge Yggdmillennia of the Black Faction in the Great Holy Grail War of Fate/Apocrypha.

Identity
Berserker is Frankenstein, (フランケンシュタインの怪物 フランケンシュタイン), the homunculus created by Victor Frankenstein appearing in. She was the result of two years of work on a patchwork of lifeless flesh that was given life, his obsession to create an "ideal human." Differing from his ideal wise and beautiful human being, he found her to be a repulsive monster, quickly dissembling her in terror and leaving it all behind. She still lived even in pieces, and was able to reconnect and repair herself. She doggedly pursued him to Geneva, Switzerland, the chase built on both hatred and admiration for the person whom she looked upon as a father. She eventually found and appealed to him:

"I never wanted to trouble you... but when you created me, you made me as only me. I am all alone, and it's painful... it's agonizing... it hurts. So, please, just one more. Please, create one more of me. If anyone can, it is you. Please... give me a mate."

- Frankenstein

He flatly refused, believing himself to have birthed of a hideous creature and being unthinkable to even consider another. Though she pleaded, he denied her again and again, causing her to realize the truth and fall into deep despair. She decided that she must have him create another no matter what, so she killed those acquainted with him, those with no relation at all, and even his fiancee. He continued to flee from her despite that, denying it to the end. Even as he died in madness, he still regretted it until his last breath. With the man she had looked up to gone and without anyone to hate, she parted from Walton, the man who watched over Frankenstein's final moment, and traveled to the uttermost north. She built herself a pyre, allowing herself to be consumed by the flames while thinking, "May my ashes be scattered across the seas..." That was the end of the monster born from the delusions of Frankenstein.

Personality
Mad Enhancement has robbed her of most of her linguistic ability, limiting her responses to head-shaking and grunts; the only time she was able to speak was when she was summoned and when she was trying to kill herself along with Saber of Red using her Blasted Tree. She can differentiate friend and foe, and she is able to communicate simple ideas. Due to a lack of skill in expression, and fearful of her own monstrous nature, she maintains a shy silence that conceals her high intelligence and empathetic capabilities, except for the emotion of sorrow. She prefers to remain in material form, and she sullenly moans when forced by Caules to remain in spiritual form. Rather than running wild, she prefers to pick flowers in the castle's courtyard garden or stare at the sky. She dislikes the overly-friendly Rider of Black, only rarely responding to his inquisitive attempts to speak with her out of annoyance. Extremely mindful of energy conservation, she will turn off the lights in the bathroom if her Master leaves them on after use.

Her wish is to bring forth a mate that is the same kind of being as her. Beings like the homunculi of Yggdmillennia, although similar, are not good enough for her, showing lines that she refuses to cross in her own way.

Fate/Apocrypha
Berserker is summoned by Caules Forvedge Yggdmillennia with Victor Frankenstein's plans for a "perfect human" as a catalyst in a multiple Servant summoning along with three other Servants. As the Servants' true names are to be shared, the inquisitive Rider of Black asks for her name, but she shakes her head. Thinking it is solely because she cannot speak, Rider asks the flustered Caules, and Berserker grumbles in displeasure as he speaks it. They leave together after the ritual is over, moaning in something close to agreement. She remains angry at him for revealing her true name when even the Black Faction may later become their enemies in the Holy Grail War, and while she picks flowers in the garden, he apologies to her in order to come to understand her better. She feels assured after knowing that her Master properly understands the Holy Grail War, and she agrees to simply focus on surviving. He asks her to correct the details of her legend in order to better understand her due to there being obvious discrepancies, and she bows her head earnestly at the request.

She does not interrupt his tale, either because Caules gets it correct or she does not care. She identifies her wish of a mate, taking offense by shoving a flower in his face when Caules suggests something like one of Yggdmillennia's homunculi. She nods for him to relate his wish to her, but he does not have one at the moment. Initially displeased by the answer, he explains his reasoning, and she grunts to show that she approves to some extent. As he begins to leave, she gives him a flower and returns to picking flowers again. As she begins to rip them to shreds, Caules is reminded of the part of the legend where she was said to have thrown the farmer's daughter into the lake thinking she would float like the flower game they were playing, and hastily retreats.

Berserker is deployed along with Saber of Black to act as part of the plan to capture the rogue Berserker of Red. They encounter Rider of Red and Archer of Red as they act as Red Berserker's backup. As Archer retreats into the forest, Rider taunts the two, causing them to become angered at the insult to their pride. As Rider challenges them, they both charge at him.

Abilities
Berserker is a relatively new mystery who does not stand out even with the raised parameters provided by Mad Enhancement, making her a suitable Servant for the low-aptitude Caules. Her true worth instead lies in a unique, innate skill. As she is a Berserker meant to rage on the battlefield in madness without accepting orders and eventually fall, Darnic has little expectations of her in the battle plan of the Black Faction. He plans to use her to bring about massive destruction on the battlefield by having Caules use his Command Spells at the right time to strike up confusion in the Red Faction. Normally slow to respond in interpersonal interaction, she exhibits surprising agility and toughness in combat; in Berserk Mode, she executes commands with extreme faithfulness. Her Noble Phantasms are Bridal Chest and Blasted Tree.

Creation and Conception
She was designed by Meteo Hoshizora and illustrated by Takeshi Okazaki for the original cancelled online game project.

The description for her original design in Fate/complete material IV differentiates in that she was rejected by her creator when she professed a love for him. Fearful of her interests, her creator dismembered her and escaped to his birthplace in an Alpine village outside Geneva. Reassembling herself and tracking him on instinct, she began to recognize over time that though she was kind in nature, she was also an existence of cursed monstrosity. The understanding of the reasoning behind her creator's rejection drove her to anger and despair, and she took the lives of his family members, pursuing him across Europe in the aftermath. Her creator eventually underwent a mental breakdown and took his own life. At the loss of the subject of her love, hopes, and hatred, the automaton drowned herself in the icy waters of the Arctic.