Also known as:
Momi (by Karin)
The oni woman from the tale of the "Momijigari". Koyo is her name, while Kijyo is the type of oni she is. Her Master Karin gave her the nickname "Momi" (モミ, Momi?), short for Momiji – another reading of Koyo, "autumn leaves".
According to legend, she was killed by Taira no Koremochi during the Heian period, on Mount Togakushi. She was also said to be the leader of a group of bandits who opposed the Imperial Court, or a lady who taught villagers how to read and write and healed their illnesses. Her story was presented extensively in the form of a noh, jōruri and kabuki performance, the "Momijigari".
Her name in her childhood was "Kureha" which was changed to "Kōyō" when she went to the capital. By nature she was a beauty overflowing with wisdom who drew the attention of many people; she was also skilled with the koto which earned her the notice of Minamoto no Tsunemoto's wife. She was favoured by Tsunemoto right away, but she received the capital punishment when she was suspected of putting a deadly curse on the shogun's wife. However, since she was already carrying Tsunemoto's child, instead, she was banished to the province of Shinano. Kōyō, who was welcomed by the villagers of Minase (later Kinasa), eventually became feared as the "kijyō (oni woman)" who led the bandits of the surrounding areas.
Kōyō, who was said to be a gift from the Demon King of the Sixth Heaven in response to the prayers of a couple who weren't blessed with a child, possessed the qualities of witchcraft from a young age. Mount Togakushi, located in the province of Shinano where she was banished to, was a mountain of asceticism where ascetics founded a temple after they received a vision from Kuzuryūshin. In addition, Mount Iizuna, which was adjacent to Mount Togakushi, was a land of witchcraft and the supernatural that was popular with the worshippers of the tengu. With this place as the backdrop, Kōyō made another kijyō, "oni lady", her follower, who was a remnant of Taira no Masakado's group that hated the imperial court, and was known for her superhuman leg strength.
The military commander Taira no Koremochi who was tasked with her subjugation met Kōyō in the mountains by chance, but it turned into a desperate battle. Koremochi, who prayed to the gods and Buddha, was gifted with a spirit sword capable of conquering demons and, dressed as a traveling priest, challenged Kōyō by himself and finally defeated her.
She resembled nothing so much as a black dinosaur, with great horns growing from her head.
Kijyo Koyo's dinosaur form was inspired by a great skeleton of a dragon god of the mountains which impressed her; perhaps in truth it was a dinosaur fossil.
Koyo is a sweet and gentle Servant despite being a Berserker. She often watches out for Voyager.
She does not like being called Momiji, though is fine with it being shortened to Momi as Karin does.
Koyo has watched over Karin since she was born, but did not manifest physically until Karin was 9 years old because Karin's parents hate Servants and do not allow them to be summoned in their home. Koyo first manifested when Karin was kidnapped by Louis XVII. They communicated via telepathy before then.
The Boy Among the Stars
When Nzambi attacks the Holy Grail Tournament with zombified Servants, Koyo defends innocents taking shelter in an empty stable next to the Colosseum. In the aftermath of the attack, Koyo and Karin help take care of the wounded.
Shinjuku the Nostalgic City
Koyo accompanies Erice and Karin to Shinjuku in spirit form. When the girls enter the red light district in search of Caren Himuro, a man suddenly runs out of a back alley and Koyo takes physical form to defend them, wrapping her tail around them protectively. Thankfully the man was just Kuchime, and rather than running toward Karin and Erice he was actually running away from Makki.
Board Game Apocalypse
Contrary to her class, Koyo is a gentle Servant well versed in healing magecraft, which she uses via an incantation to Iizuna Gongen. She possessed the qualities of witchcraft from a young age as a gift from the Demon King of the Sixth Heaven.
When confronted by a bounded field that prevented spiritual beings like Servants from passing, Koyo nearly destroyed it just by pressing her claw and head into it. She only stopped when an employee manning the shop protected by the bounded field asked her to.
Kijyo Koyo cannot speak, and communicates with her Master Karin through telepathy. Even then Karin does not actually hear Koyo's thoughts as words, but rather as feelings; Karin compares it to texting emoji. Erice Utsumi has an app which tries to analyze Koyo's body movements and put it into words, though it is not very precise. In her humanoid forms in Fate/Grand Order, she is capable of speech, but is still mute in her dinosaur form. The Master can somehow understand the meaning behind her growls.
In her dinosaur form Koyo fights with her brute strength. She can transform her scrawny t-rex claws into mighty, muscular arms for attacks.
Her main weapon in her human and Oni forms is a three-pronged sword, with the middle blade extending past the other two blades and having small branches on it. Her magecraft revolves around conjuring fire and lightning, from praying to the dragon god Kuzuryūshin. In her Oni form she also attacks with her dinosaur claws.
- Shapeshift (Dinosaur) (Rank C): From a court lady of high standing, she transforms into the form of a terrifying kijyō. Furthermore, because she desired the Mad Enhancement, she came to possess the massive body of a dragon.
- Nine-Headed Dragon's Lightning Fire (Rank A): A prayer and kagura revering Kuzuryūshin who is a fierce oni and also a water god. It appeases and controls the fury of all things in heaven.
- Thread of Life (Rank B): An incantation of Iizuna Gongen's protection that drives away sickness and brings about a long life.
- Fate/Grand Order - Kijyo Koyo's profile - Translated by Konchew
- Fate/Grand Order - Kijyo Koyo voice lines - Translated by Konchew
- Fate/Requiem Volume 1: The Boy Among the Stars - Prologue
- Fate/Requiem Volume 1: The Boy Among the Stars - Chapter 2
- Fate/Requiem Volume 2: Shinjuku the Nostalgic City - Chapter 9
- Fate/Requiem Volume 1: The Boy Among the Stars - Chapter 6
- Fate/Requiem Volume 2: Shinjuku the Nostalgic City - Chapter 11
 Tsukihime Dokuhon PlusPeriod - TSUKIHIME Dictionary: Tohno Akiha [Person's name], p.185
Akiha Tohno [Person's name]
One of the heroines in Tsukihime. Shiki's younger sister, and the Tohno family's heir.
She has long black hair and a dignified posture, firm speech, and an unendearing personality. On top of that, her love of strict discipline can make her somewhat hard to get along with.
Perhaps it's because she doesn't think much of the way Shiki lived doing whatever he pleased for eight years, but she lashes out at him every chance she gets. Though she is basically straightforward and honest at her core, she is also unyielding and hates losing, so her true personality rarely gets a chance to shine.
She was one of the people involved in the accident eight years ago, after which her dormant Tohno blood was awakened. Though she would have been able to suppress it if she only had to worry about herself, she was carrying the burden of two people. As a result, she started being attacked by seizures nearly every night, and at Kohaku's suggestion began drinking blood to maintain her body.
…Of course, it was all just a scheme to push Akiha closer to her Tohno nature. Probably, even Akiha herself was aware of it on some level.
In one of the routes, she ended up inverting and demonstrating her power to its fullest extent. That dreadful form, with its fluttering vermilion hair, is probably capable of exceeding even a rampaging Arcueid.
Long ago, in the Tohno's country, there lived a female oni named Momiji. Though she is not their ancestor, maybe you could consider her the origin of Akiha?
Incidentally, Akiha is the character with the greatest number of individual sprites. It actually made the art director break down in tears. Not only were there uniform sprites and casual sprites, but sprites for Akiha when she was inverted as well.
Also, by some strange twist of fate, her roommate at school actually had the last name "Tsukihime".
She was the only heroine in Tsukihime that didn't get a happy ending, which apparently made a lot of fans mad. We got a ton of hate mail demanding that we do something about it, hahaha. I guess it worked, though, since we ended up writing a sequel to Akiha's ending for Kagetsu Tohya.
She is the student council vice president at the Asagami Academy for Girls, and seems to be quite popular.
…Of course, that popularity stems from equal parts reverence and terror.
In Kagetsu Tohya, the power relationship between her and Kohaku began to change, and in Melty Blood she was the victim of Kohaku's cheerful treachery. Also, though the Akiha in Melty Blood is pretty… energetic, she's normally a little more graceful than that.
She totally lacks the pride and thin skin characteristic of the super-rich, but her sense for how to use money is still grossly out of sync with normal people's.
When she told Sion to "rest a bit", in Akiha's head "a bit" meant either until Sion herself was sick of it, or until she was dead. It seems she's the type of person who's cold to strangers, but excessively soft toward those who have earned her favor. Ah, so that's why you let Kohaku toy with you as she pleases, Lady Akiha!