Asha Records Wiki
Fate Regalia Assassin Airen
Also known as: Old Man of the Mountain
Appears in: Fate/Regalia
Played by: Airen
Voice actor: Kaoru Mizuhara
Character type: Servant
Affiliation: Einzbern Homunculi
Gender: Female
Height: 170cm
Weight: 56kg
Three sizes: Measurement Concealment
Blood type: N/A
Hair color: Silver
Eye color: Blue
True name: Hassan-I-Sabbah
Master: Irmina Von Einzbern
Alignment: True Neutral
Class skills:
  Presence Concealment A
Personal skills:
Noble Phantasms:
  Zabaniya ??? ???
Assassin's Past ~ Reincarnation

Assassin's Resolve (Once More, the Blade Rises) ~ Discolor Night Run ~ Moonlit Wilderness


One of the 19 Hassan-I-Sabbah's. While this obviously tells that her life was one spent killing others, she doesn't seem to take any enjoyment out of the act, and seems to dislike the title of "Hassan." Whether this means she also dislikes herself, or simply hates the other 18, has yet to be discovered.


“My Master doesn't like it when I do this, but some things can't be helped, so pay attention. This is just a friendly warning between you and I, alright? My Master, despite her...quirks... is kind, but she is not someone to be taken advantage of, if you harm her in any way, I will personally ensure that you regret it for the rest of your short existence.”

A calm and collected woman who never seems to lose her cool, no matter the situation, Assassin, unsurprisingly enough, is not a person that allows death to radiate unnecessarily from her on the battlefield, and despite the profession of her previous life, is someone who actually doesn't mind speaking with other people, although she doesn't go out of her way to do so, and tends to answer questions in ways that discourage further conversation, even when she doesn't actually mean to reject others. Like her Master, she is someone who watches others often, although unlike her Master, her reasons for doing so aren't quite as innocent, as Assassin understands the threat posed by other Masters and Servants in the city, and naturally considers most of the people she meets "eventual enemies," which is a topic that she occassionally clashes with her Master over, although neither of them hold grudges about it, and despite everything, Assassin actually seems to greatly respect her Master's profession, while Irmina seems to consider the other woman something similar to an older sister, a position that Assassin seems flattered to hold.

Is surprisingly interested in modern day technology, and is the type who would play video games by herself (or with her master) but never mention it to anyone out of embarassment. Has a fondness for ice cream, and also seems to like the quiet atmosphere of a library, or a silent unmoving forest.

While not as obviously sarcastic as her Master, it seems Assassin likes to toss subtle insults into her conversations with arrogant individuals, and doesn't seem to hold most Servants, including herself, or even "heroes," in general in high esteem, not out of jealousy, but because they are "just killers who hide their crimes behind glory and act like it's right." All in all, despite her disillusions with heroism, she actually isn't too bad a person deep down, and while she doesn't believe herself to be a "hero," and seems to dislike the name "Hassan," her loyalty to her Master is absolute, and while she occassionally seems like she is someone who would give up fighting if she could, she continues to fight to protect her Master's future, if nothing else.


Assassin has yet to showcase her abilities.


Has yet to be summoned


"I did what I had to do while I was alive, no more, no less. If you say I have no pride in that, it's because it's not something to be proud of.. I'm not ungrateful, the name Hassan carries some power, but it is also a name that inspires fear. If I must use that name to protect my Master, then I will do so in a heartbeat..."

"You're far too arrogant... Remember, no matter how great the Legend, there is always an ending. Don't force me to rush the end of your story."

"The nicer a city is on the surface, the worse the underbelly always is... I see not much has changed from when I was alive. It's a shame, I would have hoped this city would be different."

Vs Assassin: "...One of the other 18? I see. I was begining to wonder if I would meet any of you here in this city... Still, if it's really one of you, then I suppose any further words would just be wasted on uncaring ears. Come then, fellow Man of the Mountain, let us have this fated battle between killers...However, understand this... For my Master's sake, I will end your bloodstained ambition here."