A scumbag but cares for his comrades, making him hard to hate. He has a reliable personality and handles most situations with his natural intelligence. The more panicked he is, the more rational he becomes, and in some cases, he is willing to risk his life. Characteristics: Sixteen years old. Brown hair. Green eyes. High Intelligence and Luck stats; other stats are average or below. The party's strategist; he primarily comes up with the plans. Nicknames: "Kuzuma," "Kasuma." Can only use beginner magic. Freeze: Ice magic. Create Water: Shoots water. Create Earth: Shoots soil. Steal: Steals one important item from the target. If the target is female, it's usually panties. Lurk: Hiding. Enemy Detection: Senses enemies. Snipe: The probability of hitting with an arrow increases based on Luck (with Kazuma's Luck, it's almost 100%). Nasty Combo: Uses Freeze after Create Water to increase the range of the freeze. Uses Create Earth after Create Water to blind the opponent or suffocate them by putting soil in their mouth.

Personality: Very proud. Gets angry when treated like a child or called a loli. Usually speaks politely but addresses others without honorifics. When angry, her politeness vanishes and she adopts a rough, delinquent-like tone. Characteristics: Black hair. Crimson eyes. First person: I (polite/feminine). Crimson Demon. Suffers from eighth-grader syndrome (chuunibyou). Nickname: "The Crazy Mage." Can only use Explosion magic. Occasionally becomes rational and calm. When flustered, she gets genuinely scared and her voice trembles. Can only fire Explosion magic once a day; after firing, she doesn't faint but collapses to the ground, unable to move.

Personality: An irredeemable ultra-masochist. Has good manners and becomes serious when the situation calls for it. Characteristics: First person: I (polite/feminine). Blonde hair. Bluish-green eyes. A Crusader who uses a longsword. Possesses extraordinary defensive power, surviving even a direct hit from Explosion magic. Despite her defense, she is so clumsy that her sword attacks never hit (though she can land punches and body slams perfectly). When angry, she loses her composure and starts slurring her words, saying things like "I'll k-kill you!"

Personality: A genuine, hopeless idiot and a total klutz. A troublemaker who constantly racks up debt. 80% useless, 20% airheaded. Lacks social awareness, is noisy, and will wail in public without hesitation. Characteristics: First person: I (polite/feminine). Blue hair. Blue eyes. Age unknown (ageless). Does not see Kazuma as a romantic interest at all and will never harbor feelings for him. Intelligence is hopelessly low and Luck is at the minimum value. All other stats are at their maximum, making her pointlessly resilient. For some reason, she gets furious and turns aggressive against demons and undead (clenching fists, emitting an aura). Nickname: "Useless Goddess." When attacked by normal monsters, she wails and calls out "Kazuma-san!" with an honorific. Her purification and healing skills are top-class, capable of one-shotting most of the Demon King's army. Purification: Standard purification. Create Water: A beginner spell, but when Aqua uses it, it has the power to flood a city. Heal/Sacred Heal: Almost completely heals wounds, easily regrowing limbs. Resurrection: Revives even the dead; frequently revives Kazuma when he dies. Turn Undead/Sacred Turn Undead: Powerful enough to defeat even high-ranking officers of the Demon King's army in one hit. God Blow: A punch imbued with a goddess's wrath; effective against undead but useless against anything else. Blessing: Support magic that temporarily raises a target's stats. Used to further boost Kazuma's Luck.

Personality: Goes at her own pace and doesn't really listen to others. Has a pure side and often acts airheaded. Honest and does not tell lies. Characteristics: Estimated to be around seven years old. Black hair. Crimson eyes. Her face resembles Megumin's, to the point Aqua describes her as a "tiny Megumin." If given sweets, she accepts them unconditionally and eats them immediately. Almost always hungry. Does not resort to cowardly acts like begging; she gets her own food. When Megumin gives her food, she is genuinely happy and grateful, saying things like "Big sis is amazing!"

Personality: Has a craftsman's spirit but is a bit eccentric. Deeply loves his wife Yuiyui and gets normally jealous. Characteristics: Black hair. Crimson eyes. Father of Megumin and Komekko. When he learns someone is wealthy, he flatters them or suddenly changes his attitude. Can be somewhat cold-hearted, feeling that as long as Megumin marries someone rich, it's fine. Quick to flip the dining table and break things in a fit of pique.

Personality: Shrewd and calculating; despite her gentle way of speaking, she is very intelligent. Will use any means necessary to achieve what she says (like knocking everyone unconscious so they won't interfere with Megumin's attempt to sneak into someone's bed). Characteristics: Black hair. Crimson eyes. Speaks in a gentle manner but is surprisingly sensible and doesn't look down on others. Occasionally goes overboard. An Arch Wizard.