Street Fighter 1 MR/Ken - Mizuumi Wiki

Ken is Ryu's best friend and training partner. Heir to the Master's family, Ken comes from a lot of wealth and power. He was rowdy and energetic throughout his youth, and loved to get into fights. To ensure his son didn't become too much of a hassle, his father sent him to train with an old friend named Gouken. There, he met Ryu, and the two became rivals as they learned to master the arts of shotokan karate. Ken joins the Street Fighter tournament for the same reason as Ryu, hoping to fight highly skilled opponents from around the world.

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