Murayama Yoshiki was the leader of Oya High. He entered into Oya High and managed to withstand "100 Hits" tradition and fought everyone within the school to become the leader of Oya High. He is considered as a part-time student. Under his leadership, he was able to make Oya High the "O" in S.W.O.R.D. Murayama used to be childish and irresponsible, and is always eager to fight. He continued this trait even after becoming the leader of Oya High. However, he started to change when he lost to Cobra.
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