Giyagan

The Giyagan is a strange mutation caused by the mixture of Hamura Ōtsutsuki’s blood and the blood of the interdimensional Akaihada tribe, it’s one of the many defining features of the Kyōkuma clan. Once children of the clan turned four years old they are required to go through vigorous training in order to unlock their dōjutsu. The Giyagan is represented by a cobalt blue pupil, surrounding the iris is three black circles, while the sclera is royal purple. By default every Kyōkuma have cobalt blue eyes with royal purple sclera, just without the three black circles surrounding the iris. Once activated the eyes then begin to glow intensely, some even say if stared directly into you’d be put into a trance. It has a powerful range of vision, allowing it to view greater distances than the Byakugan. The distance varies between users and can be improved with training. Its vision can penetrate through any solid objects or obstructions no matter the thickness, and likewise remains unaffected by blinding interference. Like its parent the Byakugan, the Giyagan is shown to be able to use infrared to detect a target through their body heat. It can determine the development of one's chakra, can even tell if one can mold chakra at all. It can even see the elemental affinity of others. The Giyagan can see chakra to a higher degree than both the Byakugan and Sharingan, such as identifying where a person's chakra signature originates from. It can discern certain types of clones from the real person. Its ability to see chakra is acute enough — much like the Byakugan — to see the chakra pathway system and the three hundred sixty-one tenketsu that run along it. Saisho Ōtsutsuki devised a fighting style inspired by the Gentle Fist, known as the Shōgeki no Hari to take advantage of this ability, wherein they strike an opponent's tenketsu to forcibly overload the pressure points resulting in muscle functions shutting down.

The Giyagan can also decipher whether or not genjutsu is being used on either the wielder or others. However, despite its resistance and penetrative gaze to most genjutsu, certain kekkei genkai can produce powerful enough genjutsu to overpower a Giyagan. Users are also able to receive and send emotional glimpses of memories, or mental imagery associated with certain emotional states current or past. Emotional conduits like people and objects have the capability to leave behind an emotional residue, locations where major events happen is filled with emotional residue. By blending their chakra with raw emotional energy — kanjōjutsu — users are able to tap into these emotional imprints and re-experience those residual emotions and images as if they were happening in that moment — lower level users that enter these places may be overpowered involuntarily. Users can not pull in-depth thoughts like telepathy could. The Kyōkuma are also able to manipulate a person’s emotions with direct eye contact. The user can sense and manipulate the emotions, including feelings, moods and their effects, of themselves, people, animals and other creatures, whether by increasing, decreasing, causing or otherwise channeling emotions. This requires intense training to reduce chances of any side-effects and keep the user's own emotions controlled, the user is also at risk for an emotional backlash. The user is only able to manipulate only a few targets at a time. Overuse of this dōjutsu can cause blurry vision and/or crippling headaches and in worse cases emotional induced comas.