Is Yoriichi Tsugikuni Related to Tanjiro? The Truth Behind the Sun Breathing Legend


If you are a fan of Demon Slayer: Kimetsu no Yaiba, you might have wondered about the connection between Yoriichi Tsugikuni and Tanjiro Kamado. Yoriichi was the creator of Sun Breathing, the original and most powerful of all Breathing Styles, and the strongest Demon Slayer in history. Tanjiro is the protagonist of the series, who inherited the Hinokami Kagura, a dance that is based on Sun Breathing, from his family. They also look very similar, and both wear the same hanafuda earrings. So, is Yoriichi related to Tanjiro? Is Tanjiro a descendant of the legendary swordsman? The answer is not as simple as you might think.

Yoriichi’s Life and Legacy

Yoriichi Tsugikuni was born with a mark of a Sun Breather on his forehead, and had the ability to see into the Transparent World, where he could perceive the flow of life and the movements of his enemies. He was a prodigy who mastered swordsmanship at a young age, and developed the first ever Breathing Style, Sun Breathing, which mimicked the power of the sun and was effective against demons. He also forged a special Nichirin Blade that turned red when he wielded it, making it even more deadly.

Yoriichi dedicated his life to fighting demons, and almost killed Muzan Kibutsuji, the progenitor of all demons, in a single strike. However, he hesitated to finish him off, as he wanted to ask him a question, and Muzan escaped. Yoriichi considered himself a failure for letting Muzan live, and also for being unable to save his twin brother, Michikatsu, who became a demon and joined the Twelve Kizuki, the strongest servants of Muzan.

Yoriichi taught Sun Breathing to some members of the Demon Slayer Corps, but none of them could master it, as it was too difficult and demanding. He also befriended a man named Sumiyoshi, who was a descendant of a sun god worshipper. Yoriichi gave Sumiyoshi his hanafuda earrings, which were made by his mother as a charm, and told him about his dream of living a peaceful life with his family. Sumiyoshi passed down the earrings and the story of Yoriichi to his descendants, who also learned the Hinokami Kagura, a dance that incorporated the movements of Sun Breathing.

Tanjiro’s Connection to Yoriichi

Tanjiro Kamado is one of the descendants of Sumiyoshi, and the current bearer of the hanafuda earrings and the Hinokami Kagura. He is not a direct descendant of Yoriichi, but he is related to him by friendship. Tanjiro inherited the blood of a sun god worshipper, which gave him a strong resistance to the effects of the sun, and also awakened the mark of a Sun Breather on his forehead. He also acquired a red Nichirin Blade after fighting Akaza, one of the Twelve Kizuki, and learned the true form of Sun Breathing from the memories of his ancestors.

Tanjiro is the only one who can use Sun Breathing in the present day, and he is the successor of Yoriichi’s will to defeat Muzan and end the curse of the demons. He also resembles Yoriichi in appearance and personality, as they are both kind, compassionate, and determined. However, this is not because they are blood relatives, but because they share a spiritual bond that transcends time and space.


Yoriichi Tsugikuni and Tanjiro Kamado are not related by blood, but by fate. They are both chosen by the sun, and they both carry the legacy of Sun Breathing, the ultimate weapon against the demons. They are also connected by the hanafuda earrings and the Hinokami Kagura, which are the symbols of Yoriichi’s dream and Tanjiro’s family. They are the two sides of the same coin, and the two pillars of hope for the world of Demon Slayer.