|Literal English||Black Fire|
|Range||Short to Mid Range|
|Chakra Nature||Fire Release|
This technique was created by Tetsu, he is the only one to know this technique. Black Fire is a unique form of Fire Release, that created black flames, this technique is similar to Black Lightning because it was created on the concept of Black Lightning. This technique sometimes it is mistaken for Amaterasu, but this technique has flickers of white in it, unlike Amaterasu which is pure black flames.
The thing about these flames is that, they are very hot, Tetsu says that they are about 300 degrees, which they say is as hot as the sun. These flames are so hot that small particles of water evaporate around it. Though, a large amount of water can douse these flames; to use this technique, Tetsu has to inhale then exhale, then the black flames come out of his mouth.