<p>Ha Jae, who’s contemplating death on the rooftop due to bullying. A senior appears before him and suddenly pushes Ha-Jae off?! But, he wakes up safely in the Nurse’s Office in school. Ha-Jae’s retaliation against the bullying that the delinquents have started again ends in failure…<br/><br/>But, Siwoon appears before him yet again and coaches Ha-Jae to defeat the delinquents in one strike using his fist.<br/><br/>The presence of the Murim appears hidden under what seems to be an ordinary school, and the perilous adventure to the world of Murim begins.</p>