Kimetsu no Yaiba Wikia
Kimetsu no Yaiba Wikia
Flame Breathing (Zenshuchuten).png

Flame Breathing ( (ほのお) () (きゅう) Honō no kokyū?) is one of the five main Breathing Styles directly derived from Sun Breathing.


Flame Breathing is a Breathing Style that mimics flames and replicates it with the user's movements, techniques and abilities. Most, if not all, known techniques and forms involve extremely powerful singular strikes and movements that are so intense, it 'burns' the opponents. Users that have mastered Flame Breathing visualize themselves seemingly creating and manipulating fire when unleashing its techniques.

The Flame Breathing was developed by a distant ancestor of the Rengoku Family, who was originally a student of Yoriichi Tsugikuni. It can be assumed that this student attempted to master the Sun Breathing but, due to him not being as innately powerful as Yoriichi, his teacher altered his Breathing Style training in order to better focus on his students individual strengths and weaknesses. Eventually, his student continued to develop and train this style until it became its own unique breathing and was subsequently named the Flame Breathing. Since then, this particular Breathing Style has been passed down and taught through generations of his descendants and the future members of the Demon Slayer Corps.[1]

Breathing Style Relationship Chart


Known Users

Known Users
Shinjuro Rengoku
Kyojuro Rengoku
Mitsuri Kanroji
Shinjuro Rengoku
Kyojuro Rengoku
Mitsuri Kanroji

Known Techniques

Flame Breathing has 9 techniques in total, with sixth known forms and an esoteric art, Ninth Form: Rengoku being exclusive to the Rengoku family.

  • First Form: Unknowing Fire ( (いち) (かた) 不知火 (しらぬい) Ichi no kata: Shiranui?)[2] - The user charges towards their opponent at high speed and decapitates them in one slash.
  • Second Form: Rising Scorching Sun ( () (かた) (のぼ) (えん) (てん) Ni no kata: Nobori En Ten?)[3] - The user releases an arching slash attack upwards.
  • Third Form: Blazing Universe ( (さん) (かた) () (えん) (ばん) (しょう) San no kata: Kien Banshō?)[4] - The user swings their blade downwards in an arc.
  • Fourth Form: Blooming Flame Undulation ( () (かた) (せい) (えん) のうねり Shi no kata: Sei En no Uneri?)[5] - The user swings their blade in a circular motion that can defend them from all incoming attacks or decapitate multiple enemies at once.
  • Fifth Form: Flame Tiger ( () (かた) (えん) () Go no kata: Enko?)[6] - The user unleashes a powerful series of sword slashes that seemingly takes the form of a rampaging tiger engulfed in flames that charges towards the enemy at blinding speeds.
  • Ninth Form: Rengoku ( () (かた) (れん) (ごく) Ku no kata: Rengoku?)[7] - A devastating dashing slash that the user initiates from a high stance, the technique had enough power to carve a deep impression that burnt the ground where it was unleashed.


Kyojuro using First Form Unknowing Fire on a Train Demon.gif
Kyojuro uses Second Form against a demon.gif
Kyojuro uses Third Form against Akaza.gif
First Form Second Form Third Form
Kyojuro uses Fourth Form against Akaza.gif
Kyojuro uses Fifth Form Flame Tiger against Akaza.gif
Kyojuro uses Ninth Form Rengoku against Akaza.gif
Fourth Form Fifth Form Ninth Form

— Flame Breathing —


  1. Kimetsu no Yaiba Manga: Chapter 178 (Page 7).
  2. Kimetsu no Yaiba Manga: Chapter 54 (Page 15).
  3. Kimetsu no Yaiba Manga: Chapter 63 (Page 5).
  4. Kimetsu no Yaiba Movie: Mugen Train.
  5. Kimetsu no Yaiba Manga: Chapter 63 (Page 17).
  6. Kimetsu no Yaiba Manga: Chapter 63 (Page 21).
  7. Kimetsu no Yaiba Manga: Chapter 64 (Pages 8-9).