Summary of Solo Leveling Manga Chapter 40
Jin-woo receives word of a massive A-rank gate opening in Busan that requires multiple S-rank hunters to clear. He joins the operation under the Hunters Guild’s coordination — not as a guild member but as an independent contractor. The dungeon inside is filled with High Orc-type monsters led by a warlord-class commander named Kargalgan. Jin-woo enters the dungeon as a miner again to maintain his cover, but it quickly becomes clear that this dungeon is beyond what the guild’s S-rank hunters can handle alone.