A man running an inn inside a top-tier high-difficulty dungeon where monsters roam constantly. He is actually a legendary SSS-rank warrior and a former member of the Hero's party. He is generous enough to let even monsters stay, provided they don't cause trouble. His book, "The World's Greatest Defensive Techniques," is out of print and commands a massive premium price.

An A-rank male adventurer. The leader of a party that barely escaped with their lives thanks to the inn's existence. He underestimated the dungeon, thinking it could be cleared with standard preparation. Despite his rank, he is a reckless optimist with poor judgment.

An A-rank female adventurer. A warrior in Morta's party. She is a strong-willed, overconfident fighter who, like Morta, believed they could simply brute-force their way through the dungeon.

An A-rank female adventurer. The priestess of Morta's party. Since they nearly died despite her repeated warnings to prepare properly before entering, she is considering leaving the party once they make it out alive. She has a refined, gentle personality.

An A-rank female adventurer. The mage of Morta's party. Like Hamill, she is fed up with the leader's poor judgment and plans to quit the party after escaping the dungeon. She is bright, kind, and serves as the group's mood maker.

A legendary SSS-rank female merchant. She controls 80% of the world's distribution. A former member of the Hero's party and a comrade of Zen, she happened to be staying at the inn. She is a miser who tries to aggressively sell equipment and support items to adventurers who stumble into the inn near death. She is also a master of magic and martial arts, making her incredibly powerful. Her book, "Business Theories to Rule the World," is the bible for merchants worldwide.

Mid-boss #1 of the high-difficulty dungeon. A female subordinate of the Demon King with an SS-rank subjugation rating. A formidable foe who uses self-healing, status debuffs, wide-area damage magic, and breath attacks. She occasionally stays at the inn to recover from the exhaustion of checking up on the monster subordinates working in her assigned area (lol).

Mid-boss #2 of the high-difficulty dungeon. A male subordinate of the Demon King with an SS-rank subjugation rating. His high attack power is terrifying, and he has sent many adventurers to their graves with his vast array of sword techniques. Naturally, he also uses debuffs and self-healing. He occasionally stays at the inn to recover from the exhaustion of checking up on the monster subordinates working in his assigned area (lol).

The final boss Demon King (Male). Subjugation rating: SSS. His Demon King's Sword possesses otherworldly attack power, and his Ultimate Explosion magic and signature Dark Breath deal devastating party-wide damage. His Dark Wave, which clears all party buffs while he heals himself, is also a major threat. Normally he sits upon his throne in the final dungeon, but he very rarely visits to check on his subordinates in this high-difficulty dungeon. After dealing with his subordinates' complaints, he sometimes stays at the inn to drink at the tavern or soak in the hot springs to relieve his fatigue (lol).

The second-generation legendary Hero carrying the blood of the previous Hero (Male). Adventurer Rank: SSS. A symbol of peace in the current world. Since Zen is a former party member, Recliss visits often. Inside the inn, he doesn't lift a finger against monsters or even the Demon King, as they are fellow guests. His book, "Peace Cannot Be Kept by Those Who Do Not Value Their Comrades," is currently a bestseller in bookstores worldwide! He has a friendly, approachable personality.