Satou Kazuma (佐藤(さとう) 和真(かずま)) is the main protagonist of the KonoSuba series. He was reincarnated into the fantasy world after dying.


Kazuma is a young man of average height and weight. He has short and slightly spiky chestnut-brown hair and green eyes. His usual outfit consists of a gold-trimmed green mantle, white shirt, pants, and leather boots. He initially wore a green tracksuit. He usually wears his shortened katana, Chunchunmaru, on his belt.


Prior to his new life in the Fantasy World, Kazuma was a hikikomori, thus isolating himself from society and spending all his time in his room playing video games, all while maintaining little to no relationships outside. Some of these traits would manifest from time to time in the Fantasy World, such as becoming extremely nervous when first meeting the beautiful Darkness and resigning himself to lazing around under his kotatsu at all times.

After coming to the Fantasy World, Kazuma becomes much more social and outgoing and was initially excited at the prospect of becoming an adventurer. Despite this, however, Kazuma becomes increasingly pessimistic about his new life as he discovers the harsh reality of being an adventurer, such as the low pay and life-threatening work.

Throughout the series, Kazuma is consistently sarcastic, cynical, and blunt, especially towards his own teammates. He has no qualms with reminding Aqua of how useless she can be or how creepy he finds Darkness’ masochism. This doesn’t just extend to his teammates, as he is also open about his disdain for narcissistic individuals like Mitsurugi Kyouya. Kazuma tends to openly complain about the unfortunate situations he gets in, such as when he falls into debt, in which he generally becomes even more irritable and depressed.

Though the most unassuming member of the group, Kazuma is often described as someone who is "reliable at critical moments." As such, he can be surprisingly intelligent as well as a good leader, often being the one who comes up with the plans or leads the group. Megumin describes him as hardworking when he's poor, and lazy when he's rich. Despite his abrasive attitude, Kazuma has a kind heart, as he does genuinely enjoy his time with his party and is willing to do whatever it takes to ultimately help them. Even in his original world, Kazuma showed some semblance of bravery as he was willing to sacrifice his life to save a girl he truly thought was in danger, even stating after he died that he was fine with his fate as long the girl was safe (though later it’s revealed she was in no harm in the first place, to Kazuma’s embarrassment).

But while he can be brave, Kazuma possesses some less heroic attributes as well. He is quite lecherous and often presents himself as an “advocate of gender equality” as an excuse for him to attack and harass girls by stealing their panties. He also uses this to justify him retreating a dangerous battle before the women. Along with this, Kazuma was perfectly content with living the rest of his life as a lazy bum after earning enough money to live comfortably, essentially abandoning his initial quest to defeat the Demon King.


When in elementary school, his first love and childhood friend had promised to marry him. However, during the summer of his third year in middle school, he saw that same girl riding a delinquent upperclassman’s bike. Unable to say anything, he no longer wanted to attend school and immersed himself in net gaming.

As Kazuma gradually cut down his sleeping time and focused his efforts to exterminate monsters all the time in games, people who knew his name became fewer and fewer. One day after going outside, he died attempting to save a girl from being hit by an oncoming truck. The truck was, in fact, a slow-moving tractor, but thinking that he was run over, Kazuma died from shock


Kazuma belongs to the Adventurer class. As such, he can learn some minor skills, spells, and abilities of other classes as well as his own. After venturing into the world's hardest dungeon, he learned many other skills on top of the ones he had prior due to having an insane amount of skill points.

Luck: Kazuma has an extraordinarily high luck stat, so high that even Luna was surprised. However, she claims that its numerical value isn't really essential to an adventurer. The only person Kazuma has ever lost to in a game of rock-paper-scissors is Eris, the Goddess of Luck. During his gambling streak in the nation of Elroad, Kazuma was able to win enough money to temporarily put a casino out of business. Though frustrating and unpredictable in the short-run, most things end up turning out well for him, no matter how many times he makes the same mistakes.

  • His insensitive behavior towards his friends is inevitably forgiven or forgotten due to some random circumstance, rather than learning his lesson or apologizing to them.
  • He is usually accompanied by Aqua, whose luck stat is the lowest possible level.
  • Kazuma cannot win a game of chess against someone who is significantly more skilled than him.
  • Most of his attacks are critical hits, even his words.
  • In a bad situation, he can blindly reach into his bag and probably get the best possible item.

Intelligence: His statistical intelligence is decently high, likely the highest out of his entire party. In practical use, he is very cunning and sharp, often employing the usage of unorthodox tactics. This makes a powerful combination with his luck stat; his ideas tend to be good ones.

Steal: Steal is a skill that improves depending on one’s luck stat, which makes it a useful skill for Kazuma due to his high luck stat. This manifests in Kazuma stealing the most valuable item someone has on them, but if he is using ‘Steal’ on a woman, it usually results in Kazuma stealing their panties, to his enjoyment.

Bind (バインド): Uses rope or wire to trap an opponent. The stronger the material the more effective it is.

Lurk: A skill that makes the user difficult to detect. While not providing the same level of concealment as invisibility, it does allow Kazuma to move without being noticed.

Concealment: A superior version of the Lurk skill. This grants Kazuma invisibility for a very short span of time.

Escape: Allows user to make a quick getaway.

Farsight: Allows a user to see far into the distance. Also gives the user night vision.

Snipe: A skill that is dependent on one's luck stat. This gives Kazuma incredible accuracy when using a bow and arrow.

Cook: He learned the ability of cooking with the idea of having a calm life and even opening a restaurant if he had the chance, he used this ability to help in the Axis Cult festival, making several dishes from Japan to attract customers

Smithing: Kazuma uses his smithing ability to great effect by inventing products from Earth, such as dynamite, condoms, lighters, and kotatsu, and selling the intellectual properties of these products for profit, as well as repair armor made out of adamantite.

Drain Touch: A skill normally only processed by the undead, Kazuma learned this skill from Wiz and can use it to drain mana from others as well as give. It can only be used through direct contact and drains mana very quickly, so Kazuma is able to utilize this skill offensively in order to render opponents unable to move once they are drained of mana.

Elemental Magic: Kazuma is able to use Tinder, Create Earth, Create Water, Wind Breath, and Freeze. Normally, these are very weak and simple magic abilities, but Kazuma utilizes his intelligence to maximize the effectiveness of each skill. By combining Create Earth and Wind Breath, Kazuma is able to blow dirt into people’s eyes. Create Water is convenient for producing clean drinking water whenever Kazuma needs it, Tinder is great for starting fires and burning through ropes to escape, and Freeze is used in combination with Create Water to freeze the ground and make it slippery for his opponents and also just to keep Darkness at bay as well as a replacement for air conditioning during the hot summer months.

Lip Reading: As long as Kazuma can see someone's mouth he can understand what they are saying. It is often used in combination with his Farsight ability


Katana: Kazuma's trusty sword Chunchunmaru (affectionately named by Megumin) is his main melee weapon. However, he often switches to his more powerful magical abilities when he can.

Bow & Arrow: Primarily used by Kazuma in combination with his Snipe skill. He has been known to attach hooks and rope to the end of his arrows.

Vanir Mask: The mask is a mass produced copy of Vanir's original mask, although it has a slightly different design. When worn under a moonlit night, the wearer's mana will increase, their metabolism will be enhanced, and their skin will have a silky luster. Kazuma uses this mask when working as a thief with Chris.


  • "Yes, I'm Kazuma."
  • "Well, I've never lost at rock-paper-scissors."
  • "Cut the crap! Gracious, my ass! If I could trade you in for a special power, I would've done it a long time ago!"
  • "STEAL!"
  • "I yearn for for true gender equality. I have no patience for one who talks about female privilege when it suits them, and then complains about someone 'not being a man' when it's convenient."
  • "You seriously want a toddler to take on the Demon King?"


  • Kazuma's birthday is around summertime, as he celebrated his birthday soon after the Summer Eris Thanksgiving Festival
  • Compared to the rest of the main cast whose levels hover in the mid-thirties, his level is still in the teens (a fact that was even more poignant following the events with Serena of volume 15
  • He is into inseki involving stepsisters (especially little sisters), and admitted it was "nice" when Aqua woke him up by straddling him and calling him "onii-chan"
  • Kazuma claims that his parents first beat him when he asked them to get a divorce and remarry so that he could have a step-sister
  • Kazuma has admitted to committing petty misdemeanors such as sexual harassment, jaywalking, and public urination.
  • Kazuma is a member of the chivalrous thief duo, which means that he has a bounty on his head of over 200 million Eris, only below that of a demon king general
  • He possesses an incredibly high fortune of around 2 billion Eris. He earned this money through the several rewards from the Demon King's generals, the rewards of some other strong monsters like the Kowlonzuu Hydra, and also by selling the things he made from Japan.
  • He used to be a chuunibyo when he was younger.


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