Flame Breathing - First Form: Unknowing Fire

Unknowing Fire is the First Form of Flame Breathing used by Kyojuro Rengoku. Unknowing Fire first debuted in the Kimetsu no Yaiba: Mugen Train movie.

Description
The swordsman charges towards their opponent at high speed and decapitates them in one slash so powerful that it generates enough friction and heat it burns the flesh of their enemy. This technique had enough force to launch the entire Infinity Train off the tracks a short distance.

Used In

 * Kyojuro Rengoku vs Unnamed Demon
 * Kyojuro Rengoku vs Akaza