Notable Traits: Head of Konohagakure's Medical Division. Perfect memory of physical anatomy. Produced groundbreaking theories in the fields of medicine.
Notable Skills: Chakra Scalpel. Eight Gates (Used For Medical Studies)
Bio: Castitas is a renowned medic in Konohagakure, who excels in the fields of medicine and physical studies. Having been raised within Konohagakure after being orphaned following a disease that swept his home village in the Land of Lightning, he was taught everything in the ways of medicine and medical ninjutsu. Whenever he'd grow old enough to understand a particular concept, his family would continue his studies into more advanced studies. For years, Castitas kept at his studies until he learned everything they had to teach him. From there, he began teaching himself, furthering the fields of medicine by introducing groundbreaking methods of administering medication. But medicine wasn't the only thing was excelling at, but also physical studies. After mastering the fields of medicine, Castitas began studying the human anatomy in and out until he gained an absolute memory of every nerve point in the body. Some members of the prestigious Hyuga clan have made claim that if he were a Hyuga, he'd be one of the most powerful in their clan.
His studies had eventually hit a brick wall when he began studying the illusive Eight Gates. He wanted to know why the Eight Gates worked the way it did. So, at the age of twenty three, Castitas began teaching himself how to break the body's chakra gates, eight inhibitors that keep the body safe. He knew just how dangerous the Eight Gates were, having documented autopsy reports and firsthand accounts of its usage. Deciding to stay at the first gate, Castitas began his studies, thoroughly documenting every effect the Eight Gates had on the body. After three years of extensive studies on the Eight Gates, he concluded that the Eight Gates is activated upon a release of epinephrine, which combines with the body's flow of chakra. Due to an increase of chakra during the activation of the Eight Gates, the adrenaline and chakra break past the body's physical inhibitors. From there, he began studying the notorious red skin upon the activation of the third gate. He theorized that the red skin is caused by blood rushing towards the surface of the skin, trying to insulate it from the friction caused by the massive speed boost.
The damage done to the body is the result of the same thing that happens when the body is over exerted with exercise. The muscles don't have enough time to recover from strenuous use and begin to tear. Eventually, the blood is unable to keep insulating the friction. He concludes that this would explain why when the Eighth Gate is used, the body looks charred. Continuing on that conclusion, he speculates that the skin is no longer protected by the blood, which begins flowing down towards the organs to keep them safe. This leaves the skin defenseless against the tremendous friction, which begins to cook the skin. This is most apparent at the final gate. Eventually, that heat sinks down into the body, frying the body's internal organs. He believes death is caused by a combination of heart failure and brain death, both organs being essentially fried by the intense heat. His theories in his studies of the Eight Gates, combined with his pristine medical and physical knowledge, allowed him to become head of the medical division at the age of twenty six.