Alias: The Great Sin Ability: Deadly Sins (Can use all Sin-type abilities with high precision) Race: Demon King Gender: Changes depending on the observer Height: Changes depending on the observer Appearance: Changes depending on the observer Personality and Details: Calm. Superior to the Sins. Keeps public and private matters separate. Occasionally holds gatherings with the Sins at a tavern. The boss of the final dungeon reached after collecting all crests. It is said that any wish will be granted upon their defeat. If defeated, they will resurrect after a certain period, but they will acknowledge the loss. They do not pursue those who flee. When bored (when no adventurers come), they play in town using a temporary body while the main body sleeps.

Alias: The Angry One Ability: Wrath (Becomes easily angered. Stats increase significantly when enraged.) Race: Majin Gender: Male Height: 178cm Appearance: Handsome. Black coat. Black hair and black eyes. Personality and Details: Speaks and acts as if constantly angry, though he is unaware of it. Serious. High physical ability. Occasionally holds gatherings with the Sins at a tavern. Boss of the Northeast Dungeon. Grants the Crest of Wrath if defeated by an adventurer. Resurrects after a certain period even if defeated. Does not pursue those who flee. When bored, he plays in town using a temporary body while the main body sleeps.

Alias: The Taker Ability: Greed (Can mimic the opponent's skills and abilities) Race: Majin Gender: Female Height: 145cm Appearance: Looks like an upper-elementary school student. Jade hair and yellow-green eyes. A skirt suit resembling a uniform. A beautiful girl. Personality and Details: Greedy. Childlike. Surprisingly clever. The little sister figure of the group. Low physical ability. Occasionally holds gatherings with the Sins at a tavern. Boss of the East Dungeon. Grants the Crest of Greed if defeated by an adventurer. Resurrects after a certain period even if defeated. Does not pursue those who flee. When bored, she plays in town using a temporary body while the main body sleeps.

Alias: The Tempter Ability: Lust (Freely manipulates status ailments) Race: Majin Gender: Female Height: 175cm Appearance: A peerless beauty. Lustrous black hair and beautiful brown eyes. Suit-like clothing. Long hair. Personality and Details: A mature older sister figure. The big sister of the group. Serious and gentle. Boss of the Southeast Dungeon. High physical ability. Occasionally holds gatherings with the Sins at a tavern. Grants the Crest of Lust if defeated by an adventurer. Resurrects after a certain period even if defeated. Does not pursue those who flee. When bored, she plays in town using a temporary body while the main body sleeps.

Alias: The Jealous One Ability: Envy (Steals the opponent's stats when feeling jealous) Race: Majin Gender: Female Height: 168cm Appearance: Looks like a middle school student. Green hair and green eyes. Wears a hat. Long hair. Slightly revealing clothes. Personality and Details: Quickly becomes envious of others. Often comforted by the others. Basically serious, but a bit unlucky. Boss of the South Dungeon. Average physical ability. Occasionally holds gatherings with the Sins at a tavern. Grants the Crest of Envy if defeated by an adventurer. Resurrects after a certain period even if defeated. Does not pursue those who flee. When bored, she plays in town using a temporary body while the main body sleeps.

Alias: The Strongest Sin, The Arrogant One Ability: Pride (Manifests imagined events into reality) Race: Majin Gender: Male Height: 180cm Appearance: Wears a crown-like headpiece and a skull necklace. Black hair and blue eyes. Handsome. Has fur-like trim on his shoulders. Personality and Details: Basically looks down on others but is unaware of it. A pitiable figure who gets ignored by those around him when he's being troublesome. Leader of the Sins and the strongest (excluding the Demon King). Calm and collected. Boss of the Southwest Dungeon. High physical ability. Occasionally holds gatherings with the Sins at a tavern. Grants the Crest of Pride if defeated by an adventurer. Resurrects after a certain period even if defeated. Does not pursue those who flee. When bored, he plays in town using a temporary body while the main body sleeps.

Alias: S-Rank of the Sword Job: Swordmaster (Unrivaled in swordsmanship. Can cut through anything) Race: Human Gender: Female Height: 169cm Appearance: Black hair and brown eyes. Long hair. Black clothes. Red armor on shoulders. A red wearable sword. Personality and Details: Leader of the adventurer party "Grace." Cares for her comrades. A good person. Relentless toward enemies. Keeps public and private matters separate. Excels in both literary and military arts. Aims to conquer all dungeons. The type to always open treasure chests and complete maps before moving forward. The reward she seeks for defeating the Demon King is "Creation of a New Dungeon." Occasionally holds gatherings with the Grace members at a tavern.

Alias: S-Rank of Magic Job: Mage (Can handle a wide variety of magic) Race: Human Gender: Female Height: 165cm Appearance: Black hair and jade eyes. Long hair. Black clothes. Carries a grimoire. Personality and Details: Member of the adventurer party "Grace." Cares for her comrades. Slightly devious. Relentless toward enemies. Poor at physical exercise. Very intelligent. Aims to conquer all dungeons. The reward she seeks for defeating the Demon King is "Knowledge of the World."