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Kuwabara first appears as Yusuke's rival in the beginning of the series. Later he competes with Yusuke to become Genkai's apprentice, and then joins him working for Koenma. He seems to be very fond of the Koorime Yukina. He also doesn't seem very bright. ^^; But he is extremely loyal to his friends, and is always ready to fight on their behalf (or just to fight). He's the only one at the end of the series who doesn't have friends in high places in the Makai (Kurama & Yomi, Yusuke & Raizen, Hiei & Mukuro). But he does end up going to college (though how he'd ever graduate is beyond me...)