Stop hand


This Article Contains Spoilers - WARNING: This article contains major spoilers. If you do not wish to know vital information on plot / character elements in a story, you may not wish to read beyond this warning: We hold no responsibility for any negative effects these facts may have on your enjoyment of said media should you continue. That is all.

Ahh... Spetacular! It's amazing to watch as you regret, as you hate! This one feels so elated.
~ Ashiya Doman in his teaser trailer of Cosmos in the Lostbelt

Caster Limbo, true name Ashiya Douman, is a major antagonist in Fate/Grand Order, serving as the main antagonist of Shimosa Province: The Stage of Rivers of Blood and Mountains of Corpses chapter in Epic of Remnant segment. He later appears as one of the secondary antagonists (alongside Kirei Kotomine and Koyanskaya) in Cosmos in the Lostbelt.

After being mentioned in the second and third Lostbelts, Douman first appears in the Cosmos in the Lostbelt as the secondary antagonist in its fourth Lostbelt chapter, Yuga Kshetra: Genesis Destruction Cycle. He is an Onmyouji in the Heian period and rival to Abe no Seimei.

He is voiced by Toshiyuki Morikawa, who also played Fiamma of the Right, Lord Boros, Griffith (in the 1997 anime version of Berserk) and Yoshikage Kira.


Epic of the Remnants

Shimosa Province: The Stage of Rivers of Blood and Mountains of Corpses

Under the alias of Caster Limbo, Douman is the instigator of an incident in a Subcategory Parallel World in Shimosa, being the one responsible for the parallel Shirou Kotomine's corruption and the creation of the Seven Swordsmen in Shimosa, before it was revealed that he is an Alter Ego-class Servant working for the Alien God and became an ally to the Crypters. His presence actually foreshadowed the presence of Lostbelts. He created the Seven Swordsmen in Shimosa by incorporating his sorcery into the summoning ritual, he managed to turn Servants into omnicidal undead monsters.

At the end of these events, Douman claimed to have finally succeeded in finding the Lost History (called the Missing Belt, which referred to the Lostbelts). He then mentions that the "Satan" he was following was just a false name, a ridiculous joke that he got onboard with a bit too far, before sincerely apologizing to a mysterious person.

Cosmos in the Lostbelt

Unlike Koyanskaya and Kirei Kotomine, Ashiya hadn't done much in the first third of Cosmos in the Lostbelt besides his schemes in Shimosa as an experiment for the Alien God.

Douman was mentioned in the second and third Lostbelt as an Alter Ego assisting Scandinavia Peperoncino. Unlike Koyanskaya and Kirei, Douman hasn't done much in the overall plot besides his scheme in Shimosa. It's explained in the prologue for the third Lostbelt that he's become incredibly fixated on something in the Indian Lostbelt and refuses to leave.

Yuga Kshetra: Genesis Destruction Cycle

Douman was revealed to be the person behind the Indian Lostbelt's chaos. He meddled around with Arjuna Alter, Asclepius and William Tell's minds. According to Scandinavia Peperoncino, Douman coaxed out the Krishna side of Arjuna Alter to the forefront to enable his extremist tendencies and transplants Hindu deities onto the latter two to alter their personalities.



  • He is the only main antagonist in Epic of the Remnants that wasn't working with/for the remaining Demon Pillars, neither did he was motivated by or related with the result of their actions.


           Fate Series Villains


Masters & Humans

Kirei Kotomine | Kiritsugu Emiya | Ryuunosuke Uryuu | Byakuya Matou | Kayneth El-Melloi Archibald | Sola-Ui Nuada-Re Sophia-Ri


True Assassin | Assassin | Caster | Saber Alter

Black Shadow

Fate/stay night

Masters & Humans

Zouken Matou | Dark Sakura | Kirei Kotomine | Shinji Matou | Souichirou Kuzuki | Illyasviel von Einzbern


Gilgamesh | Archer (Unlimited Blade Works) | Assassin | Caster


Twice H. Pieceman | Leonardo Bistario Harwey

Fate/Extra CCC

Kiara Sessyoin



Assassin | Beast of Revelation | Caster

Masters & Humans

Manaka Sajyou | Sancraid Phahn | Misaya Reiroukan

Kara no Kyoukai

Souren Araya | Kirie Fujou | Fujino Asagami | Cornelius Alba | Misaya Ouji | Satsuki Kurogiri | Lio Shirazumi | Meruka Kuramitsu


Yggdmillenia Clan & Black Faction

Darnic Prestone Yggdmillenia | Celenike Icecolle Yggdmillennia | Assassin of Black | Caster of Black | Lancer of Black

Red Faction

Shirou Kotomine | Archer of Red | Assassin of Red

Fate/Grand Order

Fate/Grand Order: Observer on Timeless Temple


Jeanne Alter | Jason | Goddess Rhongomyniad | Mephistopheles | Kingu

Evils of Humanity

Beasts of Calamity (Goetia | Tiamat | Kiara Sessyoin | Mara | Primate Murder) | Lev Lainur Flauros | Demon Pillars


Zolgen Makiri

Fate/Grand Order: Epic on the Remnants

Demon Pillars


Archer of Shinjuku | Avenger of Shinjuku | Archer Alter | Assassin of Shinjuku


Rider of Resistance | Caster of the Nightless City


Kiara Sessyoin


Caster Limbo


Abigail Williams

Fate/Grand Order: Cosmos of the Lostbelt

Crypters (and their Servants)

Kadoc Zemlupus (Caster) | Ophelia Phamrsolone (Saber) | Hinako Akuta (Rider, later Berserker & Saber) | Scandinavia Peperoncino (Archer) | Kirschtaria Wodime (Lancer) | Daybit Sem Void (Berserker) | Beryl Gut (Assassin)

Lostbelt Kings

Ivan the Terrible | Scathach-Skadi | Qin Shi Huang | Arjuna Alter


Priestess of the Alien Star | Alien God | Koyanskaya | Rasputin the Mad Monk / Kirei Kotomine | Caster Limbo | Surtr | Kama

Fate/Grand Order Events

Black Grail | First Lady | Testement | Ultra Heroine Z | Zouken Matou | The Master With No Name | Darnic Prestone Yggdmillenia | Kama

Community content is available under CC-BY-SA unless otherwise noted.