Seireitou Hyūga

"The reason why a Shinobi learns combat is to seek spiritual understanding. Humans have always been violent. It is our predetermined nature. Shinobi understand this and seek a peaceful resolution through combat, depending on the level of threat they confront. The true warrior carries a sense of responsibility. This is born, not out of fear of the world, but in hopes of coexisting with it in its natural form. Your comment is a reflection of fear and ignorance. You are obviously not a Shinobi."

- Seireitou speaking to Sannotō Uchiha

Seireitou Hyūga (日向精霊の塔, Hyuuga Seireitou), known by all as the Philosophical Jyūken Master (旨い柔拳師, Umaijyūken Shishō; literally "sagely master of the gentle fist"), is the head sensei of Kōmyōzankū. It appears that Seireitou was once the Head of the Hyūga Clan, back during the reign of fourth Hokage, Minato Namikaze. His exact reasons for defection are unclear, though it is implied he was displeased with the political standing of the Land of Fire.

Personality
Seireitou is portrayed as loyal and dedicated, possessing a dry sense of humor and sarcastic wit. He is often seen throughout the story as helping people, mainly befriending and giving advice to several pokemon and trainers alike. Seen throughout the series, Seireitou is capable of frightening someone merely by his tone of voice, as a "demonic visage" appears overhead him, or near the person(s) he is speaking to, scaring them into submission. To this day, it seems to still frighten anyone, even the corpse puppet master Ryun, and the serious Saiga Tōkū. Despite the terrifying effect, Seireitou's tone of voice actually sounds rather soft and calm, being miscontrued as peaceful to those who aren't targeted by the visage.

In the chapter that he is introduced, the viewer clearly sees what an eccentric character he is. He typically acts in a goofy, energetic and fun-loving manner; being able to cheer up even the depressed Ryun at times. While on the surface, he acts in such a ridiculous manner, this merely masks his true personality. Seireitou appears to act mostly out of self-interest rather than any sort of philanthropy, initially comes off as a self-serving man, infamous among many of his colleagues and subordinates alike for the selfish and narcissistic aura he gives off; but to those who truly know him, he is a man that always attends to those who need him. He comes off to most as a sort of cocky layabout, shirking most of his duties, but quick to take action when it appears that his loved ones are in danger. Seireitou is expertly manipulative and prone to think several steps ahead of those around him, giving him a remarkable talent for making subordinates act exactly as he wishes despite appearing not to have had a hand in their decisions. However, while these traits do have a place in his real personality, much of his outward persona can perhaps be considered an intentional facade perfectly designed to cause those unfamiliar with him to underestimate his remarkable intelligence and ability. At the core, he is a remarkably devoted leader whose primary focus and personal duty is to pushing trainers to their absolute limits; both mentally and physically. Though he hides it well behind a veil of cynicism and self-importance, Seireitou is a man who cares deeply about the people who trust and support him and goes to great lengths to ensure their safety and well-being, even at the risk of his own. As a man with considerable knowledge and expertise, Seireitou considers himself a protector to those without strength and acts accordingly, earning the staunch loyalty of his most trusted compatriots.

In the position of an instructor, Seireitou is known to be capable of unspeakable brutality, both physically and mentally. Furthermore, he isn't very considerate of another's feelings of self-adequacy lack-there-of, portraying his signature sarcasm. According to Saori, whenever Seireitou says "Eh, I don't want to", his stubborness becomes unrivaled to the point where no amount of compensation can change his mind. Seireitou also has, on more than one occasion, considered himself sensitive to the opposite sex, explaining that he has a "tremendous intuitive sense of the female creature." However, he is not one to commit to intimate relationships. Nonetheless, he was more than adept at sweeping women off their feet, even if it wasn't intentional.

Quotes

 * "Well, as an older mentor figure, the most likely scenario is that I'd return only to be randomly killed by an enemy of yours so that you can cradle my dying body while swearing revenge — so don't take it personally if I say that I sincerely hope we never cross paths again."