Kurama Hiei and Gouki

•Kurama, also known as Shuichi Minamino, is a main character in the film Yu Yu Hakusho. He is a legendary fox yōkai who, after being injured, merged his soul with that of a human infant in order to survive. In the Human World, Kurama grew up developing a deep affection for his adoptive mother. He is distinguished by his intelligence, androgynous appearance, and his ability to manipulate plants in combat, utilizing weapons such as the Pink Whip. Although a powerful demon, his human experience granted him a more compassionate nature, making him a dual-minded, cunning, and loyal character.

•Hiei is a central character in the anime and manga Yu Yu Hakusho, known for his gloomy personality and superhuman speed. Born as a fire demon, he was abandoned at birth due to a belief that males of his kind brought bad luck. He grew up resentful and lonely, dedicated to strengthening himself in order to take revenge on those who rejected him. His quest for power led him to obtain the Jagan, a mystical third eye that grants him psychic abilities and enhanced vision. Although initially an antagonist, Hiei joins Yusuke Urameshi and his allies, evolving from a cold-blooded villain into an antihero with a strict code of honor, although he rarely shows it openly. His main motivation becomes protecting his twin sister, Yukina, whom he seeks without her knowing his true identity. Hiei is a master of fire techniques, his "Dark Flame Fist" being his most iconic attack.

•Gouki: The Soul-Eating Ogre is one of the first major villains in Yu Yu Hakusho. He is an ogre-like demon known for his ability to absorb human souls and transform into those he devours, gaining their memories and abilities. His main objective was the theft of sacred objects from the underworld. He was Yusuke Urameshi's second opponent in his mission as a Spirit Detective.