The Byakugan
This dōjutsu usually is manifested as very distinctive eyes, characterised by their enlarged and featureless white irides (though the anime tends to portray them as a light shade of lavender) with no visible pupils. While active, the pupils become more distinct and the veins near their temples bulge. Unlike other dōjutsu, the Byakugan is normally available to its users from birth, and on rarer occasions, the dōjutsu can be awakened. Himawari Uzumaki, a descendant of the Hyūga clan through her mother, generally has blue eyes. When her Byakugan is activated, she gains the characteristic white, featureless eyes of her ancestors.
In the novel adaptation, it was shown that a Hyūga descendant of a more diluted bloodline may end up only awakening this dōjutsu in a single eye.
The Byakugan's abilities have left it highly coveted, as evidenced by other villages' attempts to steal it; Kumogakure used various machinations to obtain a Byakugan during the "Hyūga Affair". Ao of Kirigakure is the only foreign power known to have obtained a Byakugan from a Hyūga he defeated and he goes to great lengths to protect it; when Danzō Shimura, a loyal extremist of Konoha, finds out about this, he goes to similar lengths to retrieve or destroy it. Unlike other dōjutsu, transplanted Byakugan can be activated and deactivated at will. In order to reduce the probability of their eyes falling into enemy hands, the main house of the Hyūga place cursed seals onto the foreheads of branch house members which, among other things, seals away the Byakugan upon their death.
Once manifested, the Byakugan will automatically activate if the user is stressed enough from confrontation. The Byakugan gives the user a near 360º diameter field of vision, with one blind spot at the back of the neck above the first thoracic vertebra. The range of this vision varies between users and can be improved with training: for example, Hinata Hyūga as a genin could see targets 50 metres away; by age 18, she can see targets 20 kilometres away. Its vision can penetrate through any solid objects and obstructions, and likewise remains unaffected by blinding interferences, though certain barriers may distort the Byakugan's perception. The Byakugan is able to follow high-speed movements and analyse their opponent's actions, which allows the user to predict and better react to them. the Byakugan is shown magnifying in on small targets and seeing infrared to detect a target through their body heat. a powerful enough user can see through one's thoughts and feelings, which Kaguya perform to such a level that even Hamura proved incapable of repelling with his Byakugan. It can also emit powerful chakra pulses to subdue an opponent.
Arguably, its greatest ability is to see chakra, which it can do to a greater degree than the Sharingan: it can identify chakra by the specific individuals it originates from, see through genjutsu plus determine its nature and when it has been used. It can also discern certain types of clones from the real person. Its ability to see chakra is acute enough to see the chakra pathway system and the 361 tenketsu that run along it. The Hyūga have devised a style of combat known as the Gentle Fist to take advantage of this ability, wherein they strike an opponent's tenketsu to either seal or forcibly open them, thus giving the user complete control over their opponent's chakra.
According to Hagoromo, the Byakugan can also be used to extend the range of genjutsu. Kaguya did so in tandem with the Rinne Sharingan to cast the Infinite Tsukuyomi on whole nations.Prolonged use of the Byakugan causes severe but temporary eye-strain, leaving wielders unable to properly perceive targets.
Born into the Hyūga Clan's main branch, Asura possessed the lineage necessary to awaken the mighty powers of the Byakugan. Even from childhood, his abilities with the Byakugan exceeded his brethren, but he was still disregarded by them due to his strange white hair; something that was deemed impossible in all the years of Hyūga history. Regardless, he never stopped pursuing methods of enhancing his skills with the dōjutsu. His abilities with these eyes improved to a point where he could gaze into a person's eyes and quite literally look into their soul.
It was when he managed to understand his status as Hyuga's clan main branch that the truest powers of the Byakugan began to make themselves known. Its powers go far beyond that of merely enhancing the field of vision and granting the ability to perceive the tenketsu. The Byakugan, which is renowned as the "all-seeing white eye" (白眼の拝見全, Shirome no Haikenzen), possesses the power to read the flow of energy in all things, even the world's flow itself and how it behaves, operates, and even its future courses. It perceives all things in this universe in the most natural state: as mere flows of energy. The Rabbit Princess, whom first wielded the Byakugan's true powers, understood that its ability to perceive the world's flow around her and even the flow in all living beings was absolutely limitless. Using this incredibly power, she managed to enact the Infinite Tsukuyomi onto all individuals, as there were no limits when coming to being able to see everything around her. Asura,has managed to unlock these abilities and crafted them into his own.
As a Byakugan that has reached its pinnacle abilities, its field of vision knows no bounds. While normal users of Byakugan are only able to perceive their surroundings to certain distances and even possess the weaknesses of blind spots, Asura's Byakugan is one that knows no such things(He can View the a large portion of the land of fire.) It is literally an eye that carries the power of omnividence (derived from the latin word "omnis" meaning "all" and "videns" meaning "seeing"/"perceiving"), hinting to an power that knows no equal when it comes to perception. It can even see worlds hidden to mortals, such as those dimensions that only the Rinnegan can influence and manipulate. It is what makes Asura's Byakugan an eye that can perceive all worlds.
In the novel adaptation, it was shown that a Hyūga descendant of a more diluted bloodline may end up only awakening this dōjutsu in a single eye.
The Byakugan's abilities have left it highly coveted, as evidenced by other villages' attempts to steal it; Kumogakure used various machinations to obtain a Byakugan during the "Hyūga Affair". Ao of Kirigakure is the only foreign power known to have obtained a Byakugan from a Hyūga he defeated and he goes to great lengths to protect it; when Danzō Shimura, a loyal extremist of Konoha, finds out about this, he goes to similar lengths to retrieve or destroy it. Unlike other dōjutsu, transplanted Byakugan can be activated and deactivated at will. In order to reduce the probability of their eyes falling into enemy hands, the main house of the Hyūga place cursed seals onto the foreheads of branch house members which, among other things, seals away the Byakugan upon their death.
Once manifested, the Byakugan will automatically activate if the user is stressed enough from confrontation. The Byakugan gives the user a near 360º diameter field of vision, with one blind spot at the back of the neck above the first thoracic vertebra. The range of this vision varies between users and can be improved with training: for example, Hinata Hyūga as a genin could see targets 50 metres away; by age 18, she can see targets 20 kilometres away. Its vision can penetrate through any solid objects and obstructions, and likewise remains unaffected by blinding interferences, though certain barriers may distort the Byakugan's perception. The Byakugan is able to follow high-speed movements and analyse their opponent's actions, which allows the user to predict and better react to them. the Byakugan is shown magnifying in on small targets and seeing infrared to detect a target through their body heat. a powerful enough user can see through one's thoughts and feelings, which Kaguya perform to such a level that even Hamura proved incapable of repelling with his Byakugan. It can also emit powerful chakra pulses to subdue an opponent.
Arguably, its greatest ability is to see chakra, which it can do to a greater degree than the Sharingan: it can identify chakra by the specific individuals it originates from, see through genjutsu plus determine its nature and when it has been used. It can also discern certain types of clones from the real person. Its ability to see chakra is acute enough to see the chakra pathway system and the 361 tenketsu that run along it. The Hyūga have devised a style of combat known as the Gentle Fist to take advantage of this ability, wherein they strike an opponent's tenketsu to either seal or forcibly open them, thus giving the user complete control over their opponent's chakra.
According to Hagoromo, the Byakugan can also be used to extend the range of genjutsu. Kaguya did so in tandem with the Rinne Sharingan to cast the Infinite Tsukuyomi on whole nations.Prolonged use of the Byakugan causes severe but temporary eye-strain, leaving wielders unable to properly perceive targets.
Born into the Hyūga Clan's main branch, Asura possessed the lineage necessary to awaken the mighty powers of the Byakugan. Even from childhood, his abilities with the Byakugan exceeded his brethren, but he was still disregarded by them due to his strange white hair; something that was deemed impossible in all the years of Hyūga history. Regardless, he never stopped pursuing methods of enhancing his skills with the dōjutsu. His abilities with these eyes improved to a point where he could gaze into a person's eyes and quite literally look into their soul.
It was when he managed to understand his status as Hyuga's clan main branch that the truest powers of the Byakugan began to make themselves known. Its powers go far beyond that of merely enhancing the field of vision and granting the ability to perceive the tenketsu. The Byakugan, which is renowned as the "all-seeing white eye" (白眼の拝見全, Shirome no Haikenzen), possesses the power to read the flow of energy in all things, even the world's flow itself and how it behaves, operates, and even its future courses. It perceives all things in this universe in the most natural state: as mere flows of energy. The Rabbit Princess, whom first wielded the Byakugan's true powers, understood that its ability to perceive the world's flow around her and even the flow in all living beings was absolutely limitless. Using this incredibly power, she managed to enact the Infinite Tsukuyomi onto all individuals, as there were no limits when coming to being able to see everything around her. Asura,has managed to unlock these abilities and crafted them into his own.
As a Byakugan that has reached its pinnacle abilities, its field of vision knows no bounds. While normal users of Byakugan are only able to perceive their surroundings to certain distances and even possess the weaknesses of blind spots, Asura's Byakugan is one that knows no such things(He can View the a large portion of the land of fire.) It is literally an eye that carries the power of omnividence (derived from the latin word "omnis" meaning "all" and "videns" meaning "seeing"/"perceiving"), hinting to an power that knows no equal when it comes to perception. It can even see worlds hidden to mortals, such as those dimensions that only the Rinnegan can influence and manipulate. It is what makes Asura's Byakugan an eye that can perceive all worlds.