Breath of Flames ( (ほのお) () (きゅう) Honō no kokyū?) is one of the five main Breath Styles directly derived from the Breath of the Sun. The Breath Style of the Breath of Flames seemed to have been 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 Breath of the Sun but, due to him not being as innately powerful as Yoriichi, his teacher altered his Breath 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 breath and was subsequently named the Breath of Flames. Since then, this particular Breath Style has been passed down and taught through generations of his descendants and the future members of the Demon Slayer Corps.[1]



  • First Form: Unknowing Fire ( (いち) (かた) 不知火 (しらぬい) Ichi no kata: Shiranui?)[2] - The swordsman charges towards his opponent at high speed and decapitates them in one or multiple slashes.
  • Second Form: Rising Scorching Sun ( () (かた) (のぼ) (えん) (てん) Ni no kata: Nobori en ten?)[3] - The swordsman uses an upwards moving slash attack.
  • Fourth Form: Blooming Flame Undulation ( () (かた) (せい) (えん) のうねり Shi no kata: Sei en no uneri?)[4] - The swordsman spins his sword in a circular motion, deflecting his enemies attacks.
  • Fifth Form: Flame Tiger ( () (かた) (えん) () Go no kata: Enko?)[5] - A series on sword slashes that take on the form of a tiger.
  • Ninth Form: Rengoku ( () (かた) (れん) (ごく) Ku no kata: Rengoku?)[6] - A devastating dashing slash initiated from a high stance. The technique carves a deep impression in the ground.  


Shinjuro profile
Kyojuro colored profile
Shinjuro Rengoku Kyojuro Rengoku


  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 Manga: Chapter 63, Page 17
  5. Kimetsu no Yaiba Manga: Chapter 63, Page 21
  6. Kimetsu no Yaiba Manga: Chapter 64, Page 8-9

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