Summary of Solo Leveling Manga Chapter 21
Deep inside the prisoner dungeon, Jin-woo encounters Kang Taeshik — a Hunter’s Association supervisor who has been secretly murdering hunters inside dungeons and covering it up. Taeshik reveals himself as a serial killer who has used his position to eliminate witnesses inside sealed dungeons where no one can see. He targets Jin-woo, confident that an E-rank hunter poses no threat. Jin-woo has no intention of dying, and the confrontation escalates quickly into a direct fight for survival.