Yusuke Urameshi(Yuu Yuu Hakusho)



Having no father and with his mother always off somewhere else, getting drunk or partying, Yusuke has grown up in a very neglectful environment. He's short tempered, impulsive, and likes to intimidate those who are afraid of him. One of his most notable traits is his desire to fight, which becomes more noticeable as the series progresses. Yusuke has been noted on many occasions to being rather unintelligent and, at times, just plain stupid. Yusuke's desire to fight is more out of enjoyment of a good brawl, and surprisingly Yusuke doesn't like killing if he can avoid it.

Hiei(Yu Yu Hakusho)



Hiei is a male fire demon born to a race of female ice demons. His mother, Hina, is forced to abandon him because koorime prohibit male children. Hiei is taken in by a group of thieves, and he learns to kill at a very young age. Throughout his childhood, his one shred of sanity is a necklace made from his mother's hiruiseki (氷涙石, ice tear stone). He eventually loses the necklace in the heat of battle. In order to find the lost hirui, Hiei acquires the Jagan. He uses the Jagan to seek out the place of his birth and learns that his grief-stricken mother committed suicide; Hiei also learns that he has a twin sister, Yukina, who has disappeared from the village. He now has another goal, to search for Yukina. Hiei is aloof, elusive, and misanthropic, often belittling and mocking humans and their emotions.