Ani Toguro, also known as the Elder Toguro, is a prominent antagonist in the anime series Yu Yu Hakusho. He is the elder brother of Younger Toguro and possesses unique abilities, such as body manipulation and regeneration, making him extremely difficult to defeat. Ani is cunning, ruthless, and often takes on a sadistic role, serving as a major threat to Yusuke Urameshi and his friends during the Dark Tournament arc. His loyalty to his brother and his unpredictable nature make him a memorable villain in the series.