Gensoukyou:Fumei Ganmen

Appearance
A tsukumogami and the youkai of identities, Fumei has many different "appearences" that it can take on. However, it's default is simply a human-shaped being wearing a fancy-looking grey robe with gold trim and a hood, a featureless white mask, and black gloves. Not a single aspect of it's body is revealed save for when it removes it's gloves to reveal it's long, sharp claws that it uses to tear off a person's face. No one knows exactly what is under the robe it wears, if anything. However, it seems to allow danmaku to pass through these robes, unhindered.

Background
Several hundred years to possibly over a thousand ago, there lived a very wise man, one who was thought by many to know all things, despite his claims that he only knew what he knows. This man, who's name is unknown, hid his identity behind a simple, white mask with only "..eyes to see the world, and a mouth to speak to it". This man wandered around Gensoukyou aimlessly, guiding those who needed guidance and giving advice to those who wanted or needed wisdom. Many people respected him, a few even worshiped him, claiming him to be a fallen god, despite him denying all claims.

Though many respected him, even more feared him, and even despised him for hiding his identity, thinking that, because he hid himself, he had something terrible to hide. Perhaps they were just jealous of his wisdom? Who knows... One day, these people found the wise man and tried to remove the mask, but the man would not allow it. The group was enraged by this even more, and tried to force the man to remove his mask, eventually leading to bloodshed. No one knows exactly how the fight happened, as all the people involved were simply found dead, including the wise man, still wearing his mask. Respecting the man's wishes to have his identity hidden, he was buried with his mask, thus taking his true identity to the grave.

One hundred years later, the mask that once hid the identity of this wise man was given life by the concept of identity, resulting in a mask tsukumogami holding the manipulation of identities. This being had no true face, only a featureless mask that would sometimes be replaced with a mask with eyes and a mouth, perhaps it's true self. Rather than surviving on human flesh, this being survived on the identities of the dead, often killing it's prey and stealing their very face, leaving nothing but a featureless mask in place. Some believe it lives among the human village, using a stolen face, an identity of another, to hide it's featureless form. It will also leave around masks that, upon wearing once, will give Fumei hold of one's identity or even change the identity of a person permanently.

Manipulation of Identities
Fumei's powers are, essentially, the opposite of Nue Houjuu's. Whereas Nue can make things unidentifiable in the minds of others, Fumei can, quite simply, just change the identity of someone or something completely, not just in the minds of those who see it, albeit with the limit of having to use masks to achieve this.

Fumei is capable of stealing the faces and identities of the dead, often using these identities to hide it's own. By simply switching it's mask, it can take the form of whoever it wants, provided it has their face. Rather than being just an illusion, when Fumei takes an identity, it copies everything about them, down to their very personality. It can also provide masks to hide the identities of others, however upon wearing one of these masks, Fumei will forever have access to your identity.

There is a difference between taking the identity of the living and taking the face of the dead, and that is what is gained. When taking the identity of a living being, Fumei will only gain the face, personality, and basic knowledge. However, if it takes the face of the dead, it will gain all their memories ( stored in a mask, of course ), powers, and, essentially, their very essence. It will, quite literally, steal their very life.

Another thing it's masks can do, is they can permanently change who you are, should it so desire. So be careful when wearing it's masks.

Combat
Fumei will rarely be seen fighting, however this hardly means it's incapable. Since it is rather formless by default, though, fighting it can be somewhat difficult. Although, fighting in it's default form is rather difficult for it as well, so it's a double edged sword. Attacking his mask is a sure-fire way to weaken it... and make it rather angry as well.

When it does get in a fight, it'll usually just take the form of someone else suited for the situation, often mimicking their powers and fighting style. However, the ease it has doing this brings up the question of how far it's powers can go. If it has any true power, it certainly never shows it.

The only true way to fight this being is while it is in the form of someone or something, that or attacking it's mask, which is a hard target to hit.

Personality
Simple and wise, Fumei has little in the way of personality. If anything, it simply just uses one from it's collection. By default, though, it seems wise, helpful, and sometimes even mischievous, as part of it's youkai nature. To some, it could even be seen as insane, to a degree. It will, however, try it's best to show emotion towards others, provided it's needed. However, whether it truly feels these emotions or not is a mystery.

It's voice, by default, is a distorted one, often being a mix of multiple voices in a whisper, however clearly heard. When it puts emphasis on things ( marked by bold words ), it will speak with a multitude of voices.

Sometimes, it can be seen visiting local shrines or temples. Often donating a small amount of yen and "praying". Whether or not it's actually praying, and if not what it's actually doing, is a mystery. However, it seems to have a high respect for it's previous owner, so perhaps this may be a reason.

Fumei can be seen, quite often, as "nice", despite being somewhat creepy and generally unsettling. However, it can also be seen as generous, often giving out well made masks as gifts, perhaps a sign of friendship... It seems to care for masks greatly, and will even seem to become sad or even angry if they're denied or, worse... wasted...

Spellcards
Identity: I am - "Who am I?"

Danmaku: Creates multiple masks around itself to fire off random lasers as random, confusing patterns of danmaku are fired from itself before being pulled back in, and fired off randomly again

Identity: You are - "Who are you?"

Danmaku: Creates masks to appear around the target, glowing a bit before exploding into lasers and danmaku. Staying in the center for too long will result in being hit. The masks keep reforming every so often, becoming faster as the card goes on. All the while, Fumei is firing off danmaku

Identity: That is - "What is that?"

Danmaku: Makes a masked item follow the opponent, spitting out danmaku as it does. Meanwhile, masks on either side of the "screen" fire alternating lasers. During this, Fumei fires off random bursts of danmaku. Eventually, the masked item will divide, and divide again before the card ends

Identity: Questioning - "What is?"

Danmaku: Random masks appear on the "screen", firing off lasers and danmaku. The speed and amount of the masks increase as the card goes on.

Identity crisis: Lost Identity - "Have you tried looking?"

Danmaku: Random masks appear and fire danmaku and lasers in a maze-like pattern while Fumei fires danmaku. Eventually, the danmaku forms a grid-like pattern and all the squares but one glows red. The person must get to that safe spot before the squares explode.

Identity crisis: Faceless - "Is it gone?"

Danmaku: Masks fall from the top of the screen, firing danmaku as they do. When the masks get half-way down, they disappear. Fumei fires some bursts of danmaku and lasers before the places where the masks stopped explode into danmaku and lasers.

Last Word: Nothing - "Who, what, when, where, how, why?"

Danmaku: Masks appear around randomly, moving and firing bursts of danmaku. Fumei sweeps across with a laser and some danmaku a few times as the number of masks increase. The card ends with 10 masks in all.

Trivia

 * The name, Fumei Ganmen, literally means "Unknown Face".