Naibugan

The Naibugan (Literally Meaning; “Internal Eye”) is a lesser known Eye Art, generated in members of the Sozo clan only. It gives the user of the eye the ability to sense damage in biotic creatures and pinpoint it with accuracy. Most notably, the eye has the power to sift through the 12 systems of the body. These systems include Chakra Pathways, Integumentary, Muscular, Cardiovascular, Lymphatic, Nervous, Skeletal, Endocrine, Digestive, Respiratory, Urinary, and Reproductive. This consents the Naibugan employer amazing power that has unlimited bounds of usage and because the clan is not a hostile one, the eye isn’t often used to harm another living being.

Abilities
When the initial Doujutsu is activated, it does not alter the appearance of the user’s eye, but does emit a large amount of invisible chakra. It can sense life-forms of those generating the signature of life from miles off and can even witness the image of the muscular and skeletal systems. The other bodily systems are not palpable until one has trained to master the eye, gaining the power to see the other systems as they go on. If and when the user chooses, they can use the Naibugan to slow down their perception of time, allowing them to witness occurrences in an abated period of time. During this duration, the world is going about its business, but the employer can react and pay witness to things much closer because of the eye’s power to slow down what it is seeing, but work with the mind to provide instantaneous reflexes to what is perceived. Under the circumstances that a foreign person would attempt to implant the Sozo clan’s Doujutsu within themselves, the eye – in all of the clan members, is triggered to employed, exploding in a violent burst of gore, rejecting its failed host. When the initial Doujutsu is activated, it does not alter the appearance of the user’s eye, but does emit a large amount of invisible chakra. It can sense life-forms of those generating the signature of life from miles off and can even witness the image of the muscular and skeletal systems. The other bodily systems are not palpable until one has trained to master the eye, gaining the power to see the other systems as they go on. If and when the user chooses, they can use the Naibugan to slow down their perception of time, allowing them to witness occurrences in an abated period of time. During this duration, the world is going about its business, but the employer can react and pay witness to things much closer because of the eye’s power to slow down what it is seeing, but work with the mind to provide instantaneous reflexes to what is perceived. Under the circumstances that a foreign person would attempt to implant the Sozo clan’s Doujutsu within themselves, the eye – in all of the clan members, is triggered to employed, exploding in a violent burst of gore, rejecting its failed host.

Complete Naibugan
The Complete Naibugan, also known as Naibugan 2, is the second form of the Sozo clan's sacred Doujutsu. The eye was originally created by masters of Igaku Chakra; those who could control Ethereal Energy. They made it in order to treat patients with cancer using radiation. They could even use different forms of radiation in order to get the job done. The most common form of radiation used by the Complete Naibugan is ionizing radiation, but radioactive decay and acute radiation are all accessible. The eye requires the extraterrestrial powers of Ethereal Energy, added with one's large chakra control, extreme knowledge regarding science and the human body, and lastly, a hectic of stressful event in trying to save someone's life to unlock. When the user is ready to control the technique, they simply close their left eye and focus on a target with their right eye while releasing a formidable amount of chakra. Suddenly, a gaseous haze will appear wherever the user so pleases as far as they can see. This green haze is the radiation and can be used to either treat or harm a patient. The skill is known as, Iku, or "Go". So long as the user is focusing on their intended target and is exerting chakra, the gas will still appear. If that ceases, so will the gas.