Kazuma Kuwabara

Kazuma Kuwabara is the 14-year old delinquent, unattractive and loud-mouthed buddy of Yusuke. At first, he is the fighting rival of Yusuke and attempts to train himself to beat him. Eventually they become the best of friends and are joined by two other demons in their missions and undertakings. He falls in love with Hiei's sister Yukina, though Yukina doesn’t know that Hiei is her lost brother. He has a very strong feel for Spiritual Power. His main weapon is the Spiritual Sword (Rei Ken) which later develops due to his increased spiritual power into the Dimensional Sword (Jigen-Tou).