Webyoriichi tsugikuni was a prodigy who invented breathing styles, starting with sun breathing. Breathing styles evolved into wind, water, fire, stone, and thunder to. Webamong its users, most important stands the technique of sun breathing, or hinokami kagura, breathtaking visuals coupled with an equally strong execution. Webyoriichi’s mastery of sun breathing allowed him to unleash devastating techniques that could instantly turn demons to ash. His transparent world ability enabled him to. Webyoriichi was known as the greatest demon slayer in history, capable of battling even the strongest demons, including muzan kibutsuji. The sun breathing technique is more commonly known as the breath of the sun and is the core concept behind yoriichi's. Webamong these techniques, the most significant is sun breathing, also known as hinokami kagura, which boasts breathtaking visuals and a formidable execution.