Hate Myself (Who are You?)

Park Jimin, South Korea's special military force's marshal was kidnapped off-guard by one of the leading members of Seoul's worst mafia. He was knocked out unconscious, he was also drugged unconscious. When he woke up, it was as if he was another person. What fantasy plots will happen regarding a transfer of a soul or a play of a devil. I hate how I could just spit the whole plot here so suck it up how I summarized everything at the beginning. Also addition to my hate is how tags could spoil the whole plot but then again, it's what helped you to discover this silly book of mine.