Hidan
Hidan was a member of the infamous Akatsuki organization. He was a sadistic, hot-headed, and masochistic ninja who wielded a scythe. He was also a skilled fighter and had a very dark sense of humor.
Hidan was born in the Land of Fire and was raised by a cult that worshiped Jashin, the god of death. The cult taught Hidan that the only way to achieve true happiness was to kill as many people as possible and then offer their blood to Jashin.
Hidan joined the Akatsuki in order to have more opportunities to kill people and to spread the word of Jashin. He quickly became one of the most feared members of the organization, due to his sadistic personality and his deadly fighting skills.
Hidan's most notable ability was his ability to regenerate from any injury, as long as he had access to blood. This made him very difficult to kill, and he often used it to his advantage in battle.
Hidan was eventually killed by Shikamaru Nara, who tricked him into drinking his own blood. This caused Hidan's body to explode, and he was finally defeated.
Despite his short time in the Akatsuki, Hidan left a lasting impression on the organization.