Sankaku Channel/sharingan

From Wikipedia:
The Sharingan (写輪眼?, lit. "Copy Wheel Eye", English manga: "Mirror Wheel Eye") is a genetic eye technique that naturally occurs in members of the Uchiha clan, an offshoot of the Rinnegan.

Refers to characters that have sharingan eyes.

External links

• Wikipedia article - Jutsu_(Naruto)