Yoriichi is a very powerful character of a very famous Japanese anime series. The name of that anime series is Demon Slayer: Kimetsu no Yaiba. The yoriichi demon slayer is said to be the second most influential and important character of this series. His full name is Yoriichi Tsugikuni. He is the strongest and the most powerful demon slayer in this anime series. He was first observed in the 14th chapter and the 8th episode of the series. The credit of all the Breathing techniques goes to Yoriichi because he created them. The series mainly revolves around the protagonist character Tanjiro Kamado. And Yoriichi was his ancestor. Sengoku era was the best era for Yoriichi because, during that era, he was the most powerful and strongest demon slayer.
Some background info of Yoriichi:
Yoriichi Tsugikuni is brother of a member of Twelve Kizuki, Michikatsu Tsugikuni. He also became a demon after some time. They were twin brothers and Yoriichi was a little bit younger. Yoriichi also resembles with the main character Tanjiro. This was due to the scar structure on the side of the forehead. They were not even relatives or family members, but the resemblance was uncanny. They two are totally different characters but have the most significant roles in the series that are interconnected.
The appearance of Yoriichi:
Like his twin brother Michikatsu, Yoriichi was also a physically strong, muscular, and tall man. He had long hair whereas a portion of his hair was spiky. He used to wear a ponytail to keep his long hair in place. Though they were twins, there were some minor differences in their appearances. Michikatsu was somewhat wider and healthier than Yoriichi. There was also a little difference between their hair. Yoriichi had somewhat curly hair. His height was 6 feet and 3 inches. He had a balanced weight of 93 kg that measures 205 lbs. He had different hair colors during different ages. When he was young, he had blackish red hair. But he had white hair in his old age. His eyes were brownish-red or maroon colored.
The personality of Yoriichi:
As we know that the Yoriichi is the strongest slayer demon. He has an affiliation with the Demon Slayer Corps and has got a legendary status in its membership. He was a positive character with calm nature, who can control his emotions. He was not so much expressive and fought with his opponents without even changing his facial expressions. His calm and composed nature made him look more serious and powerful. Most of his opponents were defeated because they could not judge his feelings and expressions during the fight. This technique is very important during the fight. Only his wife Uta was able to read his feelings and expressions. Yoriichi was able to see the transparent world. This was a very powerful technique that allows a person to see blood flow in the body, the sudden movement of muscles of his opponents to predict their next move. This technique was mostly used by the main character of the series Tanjiro.