The Byakugan is a special eye technique found in the world of Naruto, a popular anime and manga series. It is primarily used by members of the Hyuga clan. This ability grants the user enhanced vision, allowing them to see long distances and perceive chakra, the energy used for various techniques. In addition to its impressive sight, the Byakugan provides a nearly 360-degree field of vision, making it difficult for opponents to sneak up on the user. It also enables the user to see the chakra pathways in a person's body, which can be targeted for combat purposes.