Caster (Fate/Crossover - Kokonoe Mercury)

**Caster** (キャスター, *Kyasutā*) is the servant of ??? in the ??? Holy Grail War.

*"Don't... underestimate me... human."* - Kokonoe Mercury

## Profile

### Identity

Caster's true identity is **Kokonoe Mercury**, a scientist who used to be a primary member of Sector Seven and is the daughter of Nine the Phantom and Jubei.

Tager’s and Lambda’s superior at the 7th Agency, and also formerly Litchi’s and Lotte’s. She is a half-breed and the daughter of Jūbei and Konoe Ayatsuki Mercury, two of the Six Heroes, though she shows disdain for this fact, supposedly “staying angry for weeks” when Jūbei is mentioned. The reason behind this is that Jūbei left her in the care of the World Void Information Control Organization for a great deal of her childhood, apparently not staying around to act as a father figure to her.

She has a deep hatred for Terumi, because he killed her mother, Konoe, and her aunt, Celica. She also has a strong dislike of Hakumen, but cooperates with him because she needs the Susanoo Unit to defeat Terumi and cannot figure out how to separate him from it. During the events of BlazBlue: Continuum Shift, it is revealed that Kokonoe has created and stockpiled hundreds of nuclear warheads in her lab. Hakumen mentions that it was weapons like those that decimated the world a hundred years prior. In the end, after Ragna the Bloodedge successfully turned Noel Vermillion back into her normal state, his left arm was destroyed. Kokonoe was able to make Ragna a new mechanical arm, stating that a man who has not been in the habit of asking for favors asked her a favor. This man was Jūbei, and she agreed to do that favor, while also mentioning that they had not seen each other in 20 years.

In the past, she worked alongside Relius Clover under a group known as the “Sin Architects”. The story behind this was further explained in BlazBlue: Continuum Shift II’s second Extra Story – that which is inherited. Kokonoe was offered a job by Relius to work on the Event Weapon; however, she refused. Relius then showed Kokonoe the then-newly created Ignis and Nirvana, after which they left to open the Kiln. After Relius opened the Kiln, the Black Beast was released, and Relius proceeded to tell Kokonoe that the only way to stop it is for her to use magic inherited from Nine. Relius explained that the very core of Event Weapons are created through part of the Black Beast, and Kokonoe’s mother Konoe was the one who created the Arch-Enemy Event Weapons. She is skeptical of using magic, but after hearing Tager’s scream, she no longer hesitated and unleashed Konoe’s power – Infinite Gravity. She became exhausted afterwards and Relius decided to show his true colors; at this, Kokonoe became enraged and Nirvana (under her control) strikes Relius down, supposedly killing him.

### Appearance

Kokonoe appears as a fairly young adult catgirl with a slim build. Her eyes are a golden-amber with visible bags under them, due to working overtime in her lab. She has pink hair which she keeps tied in a specialized style consisting of a long ponytail backing up longer tufts resembling large cat ears, which tend to overshadow her actual animal-like ears, which fade into white at the tip, these ears are bent forward slightly. Her attire consists of an altered, scientist version of the usual Kaka jacket with a white coloration. A hole at the lower base provides room for her twin, cat-like tails. She also wears a pair of small spectacles, and is never without her trademark lollipop.

The oversized sleeves are cut at the sides to make it easier for her arms to slide in and out of them. She wears a pair of red capri pants lowered enough to reveal black underwear, with a black belt adorned by a large cat bell. The attire is completed with a pair of white mules with heels similar to the boots the Kaka tribe wears, but with no vamp, allowing her to take them off almost reflexively as her story mode render shows her barefoot in one of her feet.

In BlazBlue: Alter Memory during Episode 8, she also wears a white high-neck sports bra underneath her Kaka jacket after the oversized sleeves of her jacket got spilled with her own coffee.

When she was young, she had short hair and kept it in a pigtail, and wore the same yellow ribbon that she wears as an adult. She also did not wear spectacles. In terms of clothing, she wore a jacket similar to Taokaka’s except with the hood down, and with a black collar.

### Personality

Kokonoe is a rather serious and cynical woman with no regard for emotions, and always strives for Tager to complete his missions without fail; however, she can on rare occasions be quite personable, mostly around her creations. She is displayed and perceived as cranky and foul-mouthed most of the time. She and Taokaka possess a few similar personality traits, something that most note as “more in common than they realize”, due to their impatient nature and short attention span. She has some traits of her father and her mother, even though she tends to be bitter at both of them deep down for them not being a part of her early life. She also displays signs of being aware of the racism displayed to her heritage as a half-beastman; believing that people will show prejudice against her, it’s for this reason that even her potential new students and apprentices aren’t aware of her species, as displayed by Litchi in BlazBlue: Chronophantasma.

However, as Celica points out, Kokonoe is a good person at heart. Without Litchi’s knowledge, she became Arakune’s Observer despite the risks entailed to prevent the Boundary from consuming him and is trying to figure out an effective solution for his depraved state. Also, she repeatedly shows that she will only resort to mass destruction in a worst-case scenario, preferring to minimize the casualties caused by her war against Terumi or not have any at all. She was also willing to use an alternative method to activating the Lynchpin where Celica wasn’t sacrificed despite her being merely a clone and even took the initiative to create the Ex Machina: Minerva so she could defend herself.

Tager has described Kokonoe as being selfish, foul-mouthed, having an addiction to Silvervine candy and having the belief that the entire world focuses on her and her alone. Overall, Tager gives a very negative outlook on her when first describing Kokonoe to Noel Vermillion; however, at the end of his “frank opinions” on his superior, he states that she is actually a very kind and good person, something that Makoto Nanaya immediately calls out on, calling it contradictory to his previous sentiments. Her anti-social behavior and lack of outdoor activity implies that Kokonoe is a hikikomori.

Lotte Carmine also introduces his opinions about Kokonoe to Litchi Faye Ling when they first met. Despite his numerous complaints about her lack of ability to congratulate people, he points out how she possesses the trait of not paying much attention to detail; but compliments her abilities as a scientist.

## Abilities

### Skills

#### Class Skills

* Item Construction (A++ Rank): The Servant is capable of crafting potent Conceptual Weapons and unique Mystic Codes that can perform multiple functions on par with Sorcery.

* Territory Creation (B Rank): At this rank, creation of a Workshop becomes possible. This workshop generally can be the size of a building, self-sustaining, reduces the cost of all spells cast by Caster by half, increases mana regeneration by 40%, and warns her of all intruders within the workshop.

#### Personal Skills

* Eye for Art (C Rank): Caster has a deep love of art and has spent much of her life dedicated to it. If Caster sees a Noble Phantasm possessing artistic anecdotes they have a 50/50 chance of being able to guess the noble phantasm's true name, material composition, and concept of creation. She also possesses a small chance of realizing its history. While not technically someone who dedicated her life to art Caster has dedicated her life to science which in a way is an art all its own. So while suffering a rank down for not being truly dedicated to 'art' she is still has a high chance of recognizing Noble Phantasm's with just one look.

* Eye of the Mind (True) (A Rank): Capable of calmly analyzing situations regardless of the situation. As long as the possibility of victory is not zero this character can devise the best possible course of action to exploit that that chance and obtain victory even from the jaws of defeat. While mentioned before Caster is a scientist and possessives a very tactical mind. However that alone is not enough for such a high rank in this skill, but Caster is also acknowledged as one of the strongest beings on the planet.

* Librarian of Started Knowledge (A Rank): Caster may recall minute details that would normally escape their attention even while they are actively looking for them, and they will automatically recall any information if they encounter something associated with it. Caster also gains slightly heightened awareness and becomes more difficult to ambush. Her memory can only be effected by conceptual means. Caster has no equal when it comes to her knowledge of magic and science and naturally has a great memory when it comes to remembering all of this information.

### Noble Phantasm

#### **Armament No.99; "Match Destroyer: Ultimate Impact"**

Grabbing her opponent, Caster unleashes a flurry of rapid fire punches and then kicks them onto a large magnetic device to hold them in place. She then uses her magic to release a gigantic meteor from the sky to crash into the Earth on top of her opponent.

## References

https://blazblue.fandom.com/wiki/Kokonoe\_Mercury

https://hero.fandom.com/wiki/Kokonoe\_Mercury

https://vsbattles.fandom.com/wiki/Kokonoe

https://forums.spacebattles.com/threads/summon-a-servant-mk-5-five-servants-per-second-fate-stay-night-crossovers.285798/page-33