Onijirushi

鬼印 (おにじるし)

Demon Mark

**Onijirushi** is the Kekkei Genkai of the obscure Mazoku Clan. A terrifying ability that is comprised of two major traits, both affected by the special enzymes that exist in Mazoku. The first allows them to passively absorb Natural Energy to create Senjutsu chakra. The second makes direct use of these same enzymes to transform parts of their body in various ways.

## Overview

The basis of the Onijirushi kekkei genkai lies in the special enzymes that all members of the Mazoku Clan possess. These enzymes possess an unknown mechanic that allows the Mazoku to passively absorb natural energy, however this is not without its faults. This same mechanic affects their ability to cognitively function, which grows further impaired by the more advanced uses of this kekkei genkai (I.E: A complete transformation). At such a state, a Mazoku would want to do nothing more than kill whatever they set their eyes on.

This becomes even more dangerous when complimented by the second ability that these enzymes give to the Mazoku. By directly exposing parts of the body to these enzymes, Mazoku are capable of transforming their body in a multitude of ways. From being able to turn their forearm into an axe, to something as complicated as protrusions from which their body can fire out pure beams of senjutsu chakra. Given the use of natural energy combined with this, these modifications are brutally efficient and can turn any Mazoku into a killing machine. Doing so further debilitates a Mazoku's cognitive functions however, making them prone to murdering others when even accessing the most basic aspects of their kekkei genkai.

Once they have reached their limit, a Mazoku will naturally reach a point in their mutations where they completely transform. At this point they are stronger, faster, and without the common rationality that would allow for inhibition.

## How to Use

Given the unique powers of the Onijirushi, its powers have to be limited within reason of balance. Below are all the details of how exactly this kekkei genkai will be used in the role-play.

### Mental Health

Even when a Mazoku is actively choosing to not use their abilities, they are still under the influence of their kekkei genkai. In order for their ability to be reasonably balanced, and for it to be more realistic to the role-play, part of the wanton need for violence plays directly into a Mazoku's character. No matter who they are, or what their creed may be, someone with the Mazoku kekkei genkai must possess **three** critical flaws in their personality that can agitate them mentally. E.G., disliking when a person litters, when it rains, when dogs bark loudly, and so on. These critical flaws must be role-played out, and lead to further levels of aggression that could lead to a need to kill whatever they think is agitating them. Even in the case of the second example, the rain itself doesn't need to be the target of aggression, but someone who further aggravates the Mazoku could become a target of their violence.

Each instance where a Mazoku's flaw is aggravated will add two levels of Stress to themselves. Stress is the system by which a Mazoku's mental state is measured. There are six levels to Stress, which are to be role-played out as increasing measures of an altered mental state coupled by the need for violence for whoever has caused the stress in question. When a session is started, Mazoku start with zero Stress. Once they reach their maximum, a Mazoku will immediately transform themselves completely and proceed to attempt killing whatever aggravated them to that point.

Every round that a Mazoku is not exposed to a critical flaw, or uses a partial transformation, they will lose a level of Stress.

### Partial Transformation

Even when partially transforming, a Mazoku is inadvertantly making further use of the same enzymes that impair their cognitive functions. Because of this, when such jutsu are used, it adds a single level of Stress to them. Maintaining a partial transformation for more than one round will continue to add one level of stress per round.

### Complete Transformation

A complete transformation will occur when either a Mazoku willingly enters it or reaches their threshold of Stress. Upon reaching this state, they are more than willing to kill whatever they feel they want to kill. Even allies are subject to this if they participated in what stressed out the Mazoku in the first place. When a complete transformation occurs, Mazoku enter a unique state. The exact appearance of this transformation, as well as its uses, are an individual occurence. No two Mazoku share the same ability when completely transformed. To help reflect this, the complete transformation of an individual will be regarded as a Jutsu on the wiki. This can either be a named technique or remain without one and simply be titled as "Character's Transformed State".

While the exact attributes given to these states are individual, there are certain parts that must be maintained throughout all complete transformations. This mainly concerns with how long it will last, and its "rank". Given it is not a true jutsu, the transformation itself does not possess a rank in-character, but will act similarly to the costs of its rank. This is largely dependent upon the Combat Skills that the character possesses in their Senjutsu (which they must have to make use of their kekkei genkai's techniques). In example, Mazoku A possesses four stars in their Senjutsu. This means their transformed state would have the same cost as an A-Rank jutsu.

Unlike a regular jutsu, a complete transformation cannot be normally deactivated. This is due to the violent nature that comes with the use of this form preventing any sort of discipline that would stop them otherwise. The only way for them to be stopped is if they are incapacitated, by either exhausting themselves of chakra or being knocked out, for their Stress to decrease back to zero, by preventing them from using their kekkei genkai further, and so on.