The Hyuga Clan, one of Konoha's oldest noble families, possessed many ancient traditions, such as the rule that adult men wore kimono. They held an extremely exalted status in Konoha. Their unique Kekkei Genkai, the Byakugan, possessed extraordinarily powerful natural perception, and based on its characteristics, the Hyuga developed their unique taijutsu—Gentle Fist—which used chakra as internal force to attack with tremendous power. Combined with the Eight Trigrams Palms, the Hyuga had brought close combat to its ultimate height. Precisely because of their formidable abilities, the Hyuga's legendary ancestor, a Heavenly Ninja, established the rules of the main family and branch families. By birth order, the eldest son belonged to the main family, while the remaining children became members of the branch families. The main family used sealing techniques on the branch families, placing a seal upon their heads. Its known function was to allow the main family to destroy the branch members' cranial nerves at any time. In this way, the many branch families protected the main family and ensured the safety of the Hyuga Clan's Kekkei Genkai. However, this also buried many outstanding talents and made the Hyuga Clan seem somewhat mediocre. (Still, after waiting for a hundred years, the Hyuga finally welcomed the genius Neji Hyuga, who would correct that original mistake.) Aside from Neji Hyuga, their descendants included Hinata Hyuga and Hanabi Hyuga.
The Uchiha Clan possessed the Sharingan and Mangekyō Sharingan. Different Mangekyō possessed different special abilities, and their mysteries were unfathomably deep. Whenever enemies saw that three-tomoe Sharingan, they felt an inexplicable terror. The Uchiha Clan was filled with geniuses. Ancient Uchiha clansmen copied ninjutsu from other nations and spread it through Konoha, making enormous contributions to Konoha's strength. Because they attempted to launch a coup, they were exterminated by Itachi Uchiha and Obito