Yoreitaisei

Yoreitaisei is a powerful youkai with grey hair and facial hair. He is a major antagonist in the anime InuYasha: The Final Act. Yoireitaisei was once a human named Tōtōsai, who was a master swordsmith. He was one of the few people who could forge the Tessaiga, a powerful sword that was later wielded by InuYasha. Tōtōsai was eventually killed by Naraku, who then took over his body. Yoreitaisei used his new power to create an army of youkai to help him conquer the world. InuYasha and his friends eventually defeated Yoreitaisei and freed Tōtōsai's soul. Tōtōsai then returned to his old life as a swordsmith, and he continued to forge the Tessaiga for InuYasha. Yoireitaisei was a powerful and dangerous enemy, but he was ultimately defeated by InuYasha and his friends. His story is a reminder that even the most powerful enemies can be defeated if you have the courage to fight for what is right.