The Fate franchise is the creation and intellectual property of Nasu Kinoko and Type-Moon.

Sayonara, Zetsubou Sensei is the creation and intellectual property of Kumeta Koji and Kodansha.

Tales as Old as Time.

(Kyun kyunkyunkyun...)

Marionette (Marionette!)
Teacher's pet (Teacher's pet)
Marionette (Marionette) sensei no petto
Boku wa marionette (Marionette!)
Teacher's pet (Teacher's pet)
Marionette (Marionette!) sensei no petto
Boku wa marionette
Boku wa Romeo
Kimi wa Juliet
Sensei no petto, sensei no petto...

Zenmai jikake no guran ginoru
Itoshiki omoi wa violet
Kokoro no Jiyuu wo ubawarechau
(Etsurakushugi na no nen)

Sensei no petto, sensei no petto
Sensei no petto, sensei no petto
(Kyun kyunkyunkyun...)

Assassin.

True Name: Kaga Ai.

Other Names and Aliases: Ai-chan, Fuura Kafuka.

Alternate Classes: Berserker.

Alignment: Lawful Neutral.

Attribute: Human.

Gender: Female.

Natural Enemy: Kitsu Chiri.

Parameters:

Strenght: D

Endurance: D

Agility: B

Magic/Mana: B

Luck: D

Noble Phantasm: B

Likes: "S-Sensei! Sorry, I spoke out of turn! What a shameless person I am, you must be thinking that!"

Dislikes: "I don't have any right to dislike anyone but myself!"

First Ascension: Ai in her spring High School 3-F uniform, short sleeves and shorter skirt.

Second Ascension: Ai in her autumn High School 3-F uniform, long sleeves and longer skirt.

Third Ascension: Ai in a yellow long raincoat, with matching hat and boots.

Final Ascension: Ai in her First Ascension uniform, but with blank eyes, an expressionless face, and staring ahead while holding a knife.

Biography:

(SPOILERS FOR SAYONARA ZETSUBOU SENSEI AHEAD).

Years ago, a young lady and a young man fell in love. Tragically, she was ran over by a truck and died.

Her blood was used to save many other young girls.

Years later, the young man began working as a teacher, being handed a classroom of problem students. Himself being a problem teacher, a dramatic ham with a perchance for suicides, that was a meeting that shouldn't have happened.

Or was it?

One of the less remarkable students in that entourage was Kaga Ai, a girl with a crippling guilt complex.

Eventually, Ai was revealed as one of the girls who had receive blood transfusions from Akagi An. She was one of the collective to assume the personality of 'Fuura Kafuka', Itoshiki Nozomu's reborn optimistic love.

So Itoshiki-sensei married them all, one at a time, divorcing and remarrying them and all living together in a distant island.

That was one messed up story.

Class Skills:

Presence Concealment: A

By thinking herself unworthy, she can easily slip past by others' detection. She is a meek, quiet person when she isn't whining about her insecurities, and she rarely gets attention from others, feeding into her self despising attitude and elevating the rank of the skill even more as she broods.

Since she is a classmate and fellow Fuura Kafuka with the Assassin Tsunetsuki Matoi she excels almost as much as her.

Personal Skills:

Head of Steel: D

The posession of a steely skull that can be used as a mashing tool in combat. Ai's favorite technique in battle is ramming her head on her foes as she bows to them asking for forgiveness. Whether this is intentional or an accident is unknown, and she is too shy to say, but the frequent occurrence of it makes it likely that she is aware and as such the attack is intentional, at least to some degree.

Any attacks aimed at Assassin's head are similarly most likely to fail.

Ninjutsu: A

The training in the ways of the Japanese shinobi. Ninjas are shadow warriors who strike from the dark and leave just as soon, escaping their enemies on light feet.

She actually spent her childhood in a village in the mountains and was trained as a ninja. The purpose of it, no one knows and she is too bashful to say. Her classmates and her teacher had no idea she was a ninja until more than halfway into her series. She is that good at hiding it, but no less efficient because of it. She is skilled at throwing shurinken and blocking attacks with any object at hand.

She leaps nimbly and is graceful on her feet, giving her a delicate air of traditional Nippon beauty. Highly acrobatic.

Mental Pollution: C

All of the students in Itoshiki Nozomu's classroom had Mental Pollution to some degree, and while Ai was one of the mildest ones she isn't above the occasional bout of insane mania when pushed by her jealousy.

In general her Mental Pollution manifests as a tendence to put herself down, which only makes her try even more to prove herself. This is a boon in a campaign but also disrupts the atmosphere of a team around her, which in turn makes her even more insecure.

With her, everything is a vicious circle that feeds her doubts unless a very high Bond level is reached by a Master who cares about her wellbeing.

Noble Phantasms:

Umbrella of Pain: C+

A fond souvenir from a beloved.

Assassin's umbrella is easily recalled to her hand with a minimum of mana input, and it may be used as a bashing and piercing weapon.

The main use of the Noble Phantasm, however, is to shoot around powerful columns of icy water that can blast through the defenses of several Servants.

She once walked under the rain with a protector who captured her heart.

Even So, the Circus will Come to You: A

Anti World.

Assassin's Reality Marble.

As one of the Fuura Kafukas, Assassin is able to briefly replace reality around her with one of her choice, a mechanism of coping that brings forth a nightmarish circus.

The Servants caught inside lose Sanity Points quickly, and normal humans are driven insane immediately. Their energy is also drained by only being there. Only Servants with high levels of Mental Pollution, like the Joker, can stay there without suffering any penalties.

The effect is strangely similar to that of a Witch Barrier from the Puella Magi timeline. Bizarre minions with the figures of Ai's classmates and wearing expresionless masks move around, vomiting arms and legs from their empty eyesockets and attacking anyone. The air is toxic and overbearing and a haunting song plays constantly distracting those trapped in.

Start of Battle:

"Ah! Sorry! I only came to be a nuisance! But, but it's what my Master wants! Ah! N-Not that I'm blaming her or anything!"

"Sorry to be an eyesore! This battlefield would be a lot prettier if I were elsewhere! It's a cute battlefield..."

"You are stronger than me, I can tell! That's so depressing! N-Not for you, I'm happy for you!"

"Good morning, Enemy-sama!"

"I, I mustn't disappoint Master or Sensei, even if I always do!"

Attack:

"Sorry!"

"I'm sorry!"

"Sorry if I'm hurting you!"

"I'm the worst!"

"I only hurt those around me!"

Damage:

"I deserved that!"

"I'm so weak!"

"Bu bu bu bu bu!"

"I shouldn't be here!"

"I'm pathetic!"

Damage by Noble Phantasm: "Who could blame you for hating me!"

Victory:

"So this is what victory feels like?"

"I'm so sorry you had to lose...!"

"Sorry, because of me you lost!"

"I have just hurt another human being!"

"I'm a violent woman!"

Defeat:

"I'm so sorry!"

"I failed you! I failed everyone!"

"I'm a sorry excuse for a human being!"

"Boo hoo hoooo!"

"I'm a good for nothing!"

Summon: "I'm sorry, I'm sorry! I'm just taking the room of another, much better Servant! Because of me, you cannot summon someone who might actually help you to achieve victory! My, my name doesn't matter, but I'm Servant Assassin! Oh, I'm so embarrassed!"

Noble Phantasm Activation:

"Please, let's take a walk together under the rain."

"Rumba, rumba, rumba rumba. Even so, the circus will come for you."

Extra Dialogue:

"S-S-Sorry, I didn't see anything!" (When you have Rider or Archer Mary Read and Anne Bonny).

"She, she looks familiar... But, but I must be imagining things! Sorry to have a sick mind!" (When you have Alter Ego Hasegawa Chisame, Saber Kagurazaka Asuna, or Caster Saotome Haruna).

"Sorry... I know I have no right to judge anyone. But... for some reason, that boy, I don't like him..." (When you have Caster or Berserker Negi Springfield).

"A Sensei in the arts of ninjutsu! Please, Master, bow, bow to him, that's what is decreed by our duty...!" (When you have Assassin Kakashi Hatake).

"Chiri-chan! Chiri-chan, I'm so sorry I couldn't bring more of us here! Oi, please don't hurt me!" (When you have Berserker Kitsu Chiri).

Birthday: "H-Happy birthday! Sorry, I'll leave now so you can enjoy your day, but I had to tell you? Eh? Y-Y-You want to spend it with me? Really? Ahhhh, that makes me happy..."

Event: "S-Should I even go! I'm bound to give them nothing but trouble!"

Holy Grail: "Sorry, I don't have a right to hold it. Y-You already knew I'd say that, right? I'm sorry to be so predictable!"

Next: It's a trap!