Samurai Deeper Kyo is a story of two men in one body - the humble, polite Mibu Kyoshiro and the legendary samurai Onime-no-Kyo, who has a price on his head. Consequently, Mibu Kyoshiro is captured for having an uncanny resemblance to the samurai. As the story of SDK progresses, we learn more about the two unique souls that inhabit the same body.