Hantengu

Hantengu is a short frail man with a very thin and skeletal body, covered with veins and wrinkles and is usually seen crouching. His most noticeable feature is a large bump on the top of his head, accompanied by two curved horns. His face is thin with a sharp chin and he constantly wears an expression of terror and fear, with a prominent brow ridge that lacks eyebrows. His eyes are narrow and often appear to be squinting, lacking any visible pupils. Hantengu also has the kanji for "fear" etched into his tongue. He has dark shoulder-length wavy hair with a low hairline, only growing out from the back of his head and ears, which themselves are sharper and longer than normal humans. His nails are long but not sharp like most other demons and retain their natural square form. Hantengu wears a dark kimono that is split in the middle, the right half being covered in a pattern of flowers and lines with the left half being dark and lacking any detailed features. He also wears black hakama pants and a pair of zōri.

Hantengu's primary form has a persona of extreme cowardice and agitation. He is easily frightened by what occurred in his surroundings, showing traits of paranoia, fear and delusion. He is always shown to cry out in fear at even the most insignificant things, such as the number of years since the last meeting of the Upper Ranks being 113. Moreover, during said meeting, Hantengu spent most of the situation crying out and cowering in fear over everything around him. This extreme paranoia is especially evident in the fact that he always chooses to crawl instead of walking up straight. Even in combat, Hantengu was shown to be extremely cowardly and afraid. Hantengu seems to believe that he is completely innocent despite the obvious evidence pointing toward his numerous crimes as a human. He has a habit of deflecting the blame towards anything but himself, even proclaiming at one point that his hands were guilty but not himself as a whole. Even as a demon, killing and eating scores of innocent people, he stubbornly and erroneously maintained that he was innocent, and claimed that he deserved the sympathy of others.

Overall Abilities: As the holder of the fourth highest title in the Twelve Kizuki, Hantengu is an extremely powerful demon. Through his Blood Demon Art, he is able to create four clones that were manifestations of his emotions, each of them possessing an Upper Rank demon's level of strength. Enhanced Stealth: Hantengu possesses immense skill in stealth, which can be seen when he managed to easily infiltrate the Swordsmith Village, one of the Demon Slayer Corps' most vital and well fortified bases, without any of the numerous Demon Slayers stationed there noticing. Hantengu later managed to sneak into Muichiro's and Tanjiro's room without any of them detecting him, despite the former possessing a heightened ability to sense the presence of demons and the latter possessing an incredibly acute sense of smell that would've sensed a demon's presences from extremely long distances. Immense Durability: Hantengu possesses a body so durable. Immense Speed & Reflexes: As an Upper Rank demon, Hantengu possesses incredible movement speed and reflexes. Size Alteration: Hantengu has the ability to change his size at will. Emotion Manifestation: Hantengu's Blood Demon Art allows him to manifest his emotions as younger clones of himself. Each clone personifies a core emotion, which can be identified by a kanji on their tongue. These clones all have different appearances, abilities, and weapons, with their individual strength being at least Upper Rank caliber, and all of them seemingly resembling a younger Hantengu. The emotions shown so far are anger, pleasure, sorrow, joy, hatred, and resentment, with Hantengu himself having the kanji of "fear" etched onto his tongue. This Blood Demon Art is activated when Hantengu's head is cut off, where his head and body turn into two separate clones, one that personifies his anger, and the other which personifies his pleasure. After these two clones are decapitated, they split off into two more clones, personifying his sorrow and joy. One notable trait about these manifestations is they cannot be killed when Hantengu himself is still alive.