W.A.T.

The creature is often describes in the series compendium as a powerful Shikigami, that only the most powerful Onmyoji could summon, and they have a vicious temperament.

When we talk about Shikigami, the first thing that comes to mind are paper dolls. This is no surprise, since Shikigami are summons Onmyoji binds to paper dolls or talismans, so they could interact with the physical world. This is also because paper is a very easy material to destroy, if things go south. Onmyoji are the equivalent of western sorcerer, that followed the Onmyōdō, a esoteric cosmology. It started in the 6th century in Japan as a divination practice, and evolved from there. I won't go into detail, because this is meant to be a short post. But materials about this practice are abundant on the internet.

The main concept concerning us here is the Shikigami. These are basically some kind of familiar, a spirit or demon if you want, the sorcerer could conjure to protect him or do his biding. The Cultural Alliance Brazil- Japan, which i already mentioned in other posts, states that:

''Shikigami can be Oni or demons, that should serve and protect an Onmyoji. Your abilities would be determined by the abilities of his master.

A Shikigami could assume the form of small animals, birds, etc... One Shikigami from a powerful Onmyoji could possess and control one animal. But only a real powerful Shikigami could possess a person.

When an Onmyoji is fighting another Onmyoji, they employ the use of their Shikigami. Some Onmyoji could spot the enemy Shikigami beforehand, and try to convert it to his side with magical powers. In this game, the converted Shikigami would come back to the old master, and attack with double the force. This pratice was called Shikigami Gaeshi.

Abe no Seimei is said to be the most powerful Onmyoji to ever exist. Some rumors say he had twelve Shikigami, while regular Onmyoji would rarely have more than one Shikigami at the same time.''

So, that is a rough definition of what a Shikigami is.

But, when researching this creature you would not be able to regularly find Shiki-ouji. The fastest method for him to appear, was the English Wikipedia article about Shikigami, which weirdly had this part about Shiki-ouji, but offered no source to it:

Having the kanji to Shikiouji, and some keywords, i found someone at Tumblr who asked the same question 6 years ago, in Eirikr's blog.

From there, Eirikr offered a link to a blog post writing about Izanagi Ryu Shikoku. Ryu Shikoku is an ancient folk religion and pratices from the Kochi prefecture. It is still practiced in the area to this day!

In this belief system there is the tradition of the Shiki-kui masks. Which.. bear a very uncanny resemblance to our paper guy, subject to this post:

These masks would be hang above the place the ceremonies of the Izanagi Ryu take place. They would have magical powers that could repel evil spirits, and non believers from coming to the ceremony and disturbing it. They would also serve as talismans, or paper dolls, in a simmilar vein the regular Shikigami pop image you have in mind.

Since they are used to summon spirits, bind them, and as talismans, these creatures can be, technically called a Shikigami.

With this knowledge in hands, i went to the Japanese web. And sure enough, i found this site: The Nippon Foundation Library. It has an article detailing the paper talismans used by Izanagi No Ryu Onmyoji, and their meanings, powers, and also explained a bit about Shiki-Ouji!

Here is what they have to say: (Please be warned that i do not speak Japanese, and used machine translation. Any corrections are Welcome!)

Shikē Ōji… Shikē Ōji is a spiritual entity invoked by the taisa during prayers for the sick and the "toriwake" ritual to expel evil spirits causing illness or calamity. Its birth is described as abnormal, and due to its excessively violent power, it has no place to reside. Usually, it is sunk in the pond of Tendō-nanta, and summoned only when needed to guard ceremonies, to pray as the guardian deity of ceremonies, or as a prayer deity of Jumon no hakase. There seem to be several types of Shikē Ōji depending on their purpose, such as Takata no Ōji for toriwake, Gotai no Ōji for prayers for the sick, and Ōtaka-shiki for insect prayers. Additionally, talismans such as Sangoku Arashiki, Chimura San Ōji, and Sakago no Ōji are handed down, and it is inferred that they were used according to the content of the prayers, although many details of their usage are unknown.

Using the powerful Shikē Ōji against humans becomes a curse. In Kochi Prefecture, "hitting a ceremony" is widely used to curse people. Many people use this term without understanding its original meaning. "Hitting a ceremony" refers to attacking someone using Shikē Ōji. While Shikē Ōji can benefit people if used for good, it can harm them if used for evil. Talismans of Shikē Ōji, possessing such terrifying power, often have several incisions on them, each containing twelve notches, giving them a rough impression. However, unlike talismans found in mountains and rivers, they do not seem to have incisions for eyes or mouths. In this regard, they are closer to the cutting style of talismans for house gods and sacred gods. Here, one can sense the emphasis on the powerful nature of Shikē Ōji's talismans while also distinguishing them from strange monsters.

So, as you can see there is some key information about the creature here. But the most important ones:

1- It is bind to a talisman, just like other Shikigami. The text here explains it is a paper talisman with notches, just like regular ones used in religious ceremonies.

2-It has a powerful and violent nature, just like the compendium often indicates in Megaten games. It seems hard to tame and use properly without getting hurt.

3-Shiki-Ouji can be powerful and violent, but it seems they dislike being used to hurt people. Instead, they are better employed to use their magic to other deeds. However if you still use them in that regard, they will most likely curse you.

4-Their talismans have twelve notches, no incision for eyes and mouth due to their aggressive nature.

I am sure that, if we follow this trail we will find many more sources. Going by key words i found in this text, i found many other sites and books, but since i have no time now to fall a rabbit hole, nor do i speak Japanese... That is it, i think this is a satisfactory answer to where this Megaten Demon came from!

The real forms of Shiki-Ouji

The last thing in want to talk about, is Shiki-Ouji real appearance. Since we have a seemingly wrong impression of they in Megaten, since Kaneko took some artistic freedoms.

First and foremost: From the few things i studies about Shikigami, we know they do not have a real physical form. The paper talismans are just a way to give them physical form. But it was incredibly hard to find a Shiki-Ouji talisman, which was weird because it was so distinguishable. The main reason being that: Shiki-Ouji seems not to be believed to be easy or safe to summon, and also their talismans would be destroyed asap after use.

But with the description i got, it would be this one that matches it the most:

No eyes, or mouth. Twelve Notches, six from each side, and some incisions. Very similar to a regular talisman found in other types of ceremony. Just as the text suggested.

I got this picture from this book:

Tosa, Monobe Village: Shapes of the Gods

Monoba being the village where most of these rituals came from. The book is from 1999, and contains many pictures of actual talismans.

You can see that, aside from the head shape, Kaneko took some freedom with this design. The sources state that Shikiouji talismans should not have a face, nor limbs, since it was too powerful, and should have 12 notches. For some reason, Kaneko drew it in a human-like form, but the face still resembled the Shiki-kui masks. The earlier design of the demon was even more closely resembling the masks:

Shiki-ouji earlier design from Devil Summoner (1996). It was later repurposed as the demon Shikigami. It is almost an exact match to this talisman. I can not however identify the original source.

Shiki-Ouji current design by itself could have been based on this one talisman in specific, at least some parts of it like the head with horned-shaped appendages:

It was sourced by the National Museum of Japanese History, but the post went down. The low quality image of the talisman can still be seen on google, but the link is dead, unfortunately. It seems that this item is in possession of the Museum in Japan. Kaneko could have seen it in pictures, or in person. This one seems NOT to be displaying a Shiki-Ouji thought.

Maybe the Kaneko take is that Shiki-Ouji was summoned with limbs, and facial features and became much more stronger as a result? We may never know...

And finally there is also an occult book that i found in Amazon Japan that is called: Exploring Izanagi No Ryu: ShikiOuji.

It is supposedly a manual on how to practice Izanagi no Ryu, and magics. I could not find the book online, just the summary. But it mentioned nothing about Shiki-Ouji. Probably has some sort of tutorial to summon it, in fact i was able to find many of those tutorials on the Japanese web.

Now, that is it. I think this puts to rest a little bit of mystery involving the origins of this specific demon. Kaneko sure took some freedoms, but it is still one of the more popular and recognizable characters in the series.

Final considerations:

This most likely is the answer to its origin, but i am not some sort of owner of all truths, so feel free to correct me in anything i said wrong. I am still an amateur scholar, and even if i do know a lot about mythology and ancient religions because i read many books and study a lot of hours of my days, i am by no means a specialist in Japanese Mythology specifically, specially Shikigami practices. The reason is that, i find it very difficult and time consuming to research Japanese sources, since i do not speak Japanese. I will one day, try my best since there are a lot of good Yokai to cover in future Scientific Papers.

I can, however, guarantee that i did my best in a deep search!

And i have spent a lot of time looking through pictures of Shikigami talismans, and i found some really cute. Like this one. What a whimsical little fella...