Name: Suyiketsu 'Suyi' Yomi
Title: Oni Princess | Oni King
Age: Young, by comparison
Gender: Female
Allegiance: Demons of Hell | Yomi Plane
Race: Oni
Personality: Being the representative of the Yomi Plane, Suyi acts with clear intentions and rarely does an action of her without thought put into it. Despite being prideful the Oni goes to great lengths for her kin and is not afraid to get herself dirty. As refined as she tries to be however, it seems to be a common thing that Oni usually act rather wild and dark but still with passion. Though, as long as Suyi doesn't get drunk everything is alright.

Since she lost her parents the Oni is also out for revenge and would do nearly anything to attain enough power to do so.

History:
There was once a mortal woman and a powerful demon who fell madly in love with each other - hoping to close the bridge created between the two factions. Without much success however, the mortal woman soon saw herself an outcast while the demon, unyielding through his love, had to crave a new home for the two, sheltering his lover from the harsh environment of the Demon Realm.

This was how the Yomi Plane came into existence - their children being the first beings that would soon be titled Oni. Despite retaining a lot of standard demonic traits from their First Father, the Oni's culture and social behaviour was ultimately decided by their First Mother, making the Yomi realm look like something out of a human fairy-tale.

Because of this, and them being no pureblood demons, Oni's were usually looked down upon, ultimately living a secluded life in their self-created monarchic Paradise.

With human-blood inside them, the average life-span of an Oni was a lot lower compared to the standard demon, leading to a lot of inbreeding and variations between themselves before ultimately becoming what they were today: Nearly human-looking with, usually, two horns on their head.

Suyiketsu herself was born as the heir of the Yomi Plane. Without any siblings to compete against and under the protection of the Oon Barrier, her parents education was rather considerate and thoughtful. Of course, no peace lasted eternal, and Suyiketsu suddenly found herself at wits end as a metal-winged angel single-handedly crushed her own little paradise and killed her parents... . Thus, her quest for revenge and honour began.

Powers:
Oni Horns
The power of a Oni is directly tied to the size and amount of horns they posses. With their First Father, Yomi, also being called the Many Horned Devil, most Oni nowadays have two horns. Rumours have it that way older generations were able to transform into more-horned variant, greatly amplifying their power.

Being an incredible prideful folk, the horns are also the source of protection against mind-fuckery abilities, making it hard to impossible to subside even a two-horned specimen.

The Horn of an Oni is extremely sturdy and a highly sought after material in the creation of protective gear.

Oni Power
Somehow, something the Oni seem to be famous for is their strength. While increased physical attributes in comparison to a non-techno-human are superior, what really stands out is their strength, even amongst their demon brethren.

Oni Vitality
Another trait Oni posses are their regeneration, able to withstand immense amounts of suffering. Sadly, however, the power of this ability fluctuates even more than others with the amount of horns they posses, making a two-horned variant take two weeks to regrow an entire limb.

Oni Mystic
The Oni horns are full of magical energy! While their main use is to amplify traveling between this plane and others through special portals and their own blood, it isn't too uncommon that various mystics of the Oni species are fearsome magicians. Suyiketsu, however, did not receive any proper training in such arts so far.

Weapons:
The Key Of Creation: Fate
Supposed to be one of the Seven Keys of Creation that the Oni, Urias the Butcher, had taken from the Angel's a long time ago. Supposed to alter Fate itself, the Key simply became a family heirloom.

Whatever it is just a legend or the truth, the Key, in form of a blade, is simply a reliable weapon that never seems to lose its Edge.

Equipment:
The Key Of Creation: Neuanfang
Supposed to be one of the Seven Keys of Creation that the Oni, Urias the Butcher, had taken from the Angel's a long time ago. Supposed to alter existence itself, the Key simply became a family heirloom.

The pendant was returned to their rightful owners in the recent attack against the Yomi Plane.

Other:
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Random Trivia:
#1 Oni's fighting power is increased by alcohl. Despite that, however, Suyi refuses to drink
#2 The death of their First Father, Yomi, was never confirmed. Nowadays he is worshiped as a deity.
#3 No matter how many Oni Portals, a special arrangement of stones that allow travel between different Planes, are destroyed, somehow there always seem to appear more!
#4 Despite the word 'Pureblood' being kind of prideful and thus, fitting an Oni, it is commonly used as a sarcastic remarks considering their mixed blood with humans.
#5 The Oon Barrier was a protective measure created by Urias to ensure that nobody could ever trespass into the Yomi plane through their own means.
#6 Rumours have it that the giant forests and mountains inside Yomi are still inhabited by elder Oni, some of them being able to call the First Father their grandpa.
#7 Despite her parents deaths making Suyi the new Oni King, she is still just a princess until the coming-of-age ceremony.
#8 Oni are true masters at making tea.
#9 The Yomi plane is not only protected by the Oni but also the numerous mythical creatures usually living in seclusion.