Leader of a pirate group seeking revenge against the North and South Korean governments for his family's death. He hijacks a freighter to obtain radioactive waste and plans to detonate uranium-filled balloons over the Korean Peninsula. He is ultimately killed in a fatal duel with Sejong.
Park becomes a direct target of Sin's revenge for the destruction of his family.
Sin stabs Park Wan-sik in a Busan men's bathroom. The plot states that Park was partly responsible for the death of Sin's family.
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