Synopsis

Lee Han, after completing a brutal trial where he refused to surrender, earns a promotion to Class B. Meanwhile, another instructor, seemingly arrogant, challenges Lee Han, the new Class D representative, to a spar. Despite the instructor's dismissive attitude, Lee Han demonstrates surprisingly adept skills in combat, using unconventional methods like centrifugal force, impressing observers and prompting the instructor to take him more seriously. The instructor's philosophy is further revealed, emphasizing the necessity of strength to survive.