Teacher who has mastered 9 styles of martial arts. With a mysterious past who seems to hold a grudge for the martial artists federation relating to the death of his master.

At the beginning of the story he seems to be a perverted middle aged man who came to the school going undercover as a teacher. After Shioon discovering his martial art skills, Shioon blackmails him with a video clip. Continuing Chun woo discovers Shioon's hidden potential and teaches foot and arm techiniques. As the story progresses, he shows more of his past and growing relationship with his new disciple.

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