White Mirror Eye
Name
Kanji	白鏡の目
Rōmaji	Hakkyō no Me
Literal English	White Mirror Eye
Debut
Appears in	Manga only
Data
Classification	Kekkei Genkai, Dōjutsu, Ninjutsu
Type	Byakugan, Dōjutsu
Class	Offensive, Defensive, Supplementary
Range	All ranges
Hand seals	No
Users Seireitou Hyūga Shizukesa Hyuuga

An advanced technique that was born from Seireitou Hyūga's Byakugan, it is a technique that causes the Byakugan to become a "mirror", and reflect the Dōjutsu technique of an opponent that is within Seireitou's sight. Against Ryun Uchiha, when the man used his Susanoo technique, Seireitou's eyes reflected the image of the former's Mangekyō Sharingan, subsequently reflecting the use of the Susanno attack as if Seireitou was using it himself.

Essentially, Seireitou can reflect the technique used by the Dōjutsu user, but can only keep one of those techniques active at any one time. An Uchiha who could cast Amaterasu while their Susanoo is active, Seireitou would only be able to replicate a use of either Amaterasu or Susanoo, but not both. In addition, he can not use a technique that is not already being used or is in effect by the Dōjutsu user whom he is replicating.

It does not have an offical name, and was called "White Mirror Eye" by an opponent whom Seireitou claims he killed through this technique.