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Devil King Kyoichi Yasaka (魔王・八坂恭一 ), is the main antagonist of the KonoSuba series. The King of the Devilkind,[1] he was at war against the Kingdom of Belzerg and the world at large, and was the reason why monsters were growing stronger.[2]

Appearance[]

He is mentioned to be quite old, looking to be around in his mid-100's with gray hair. He generally has a human appearance, save for the noticeable horns on his head. He wears a pitch-black outfit. When his powers are active, his body would emit a black mist that strengthens his allies.

Personality[]

The Devil King tended to fulfill his role as a final boss, by making villain speeches, tempting the Hero and provoking the latter with his hidden motivation and origin. Therefore, he was a very prideful and boastful villain who wouldn't flee a duel, unless the Devil King didn't recognize them as a worthy opponent.[3] Nevertheless, his cowardice got in the way sometimes, such as attacking his challengers before making a proper introduction.[4]

Alongside his cowardice, the Devil King shared other traits with Kazuma, like being insightful, what allowed him to see through the latter's provocations; convincing, almost persuading Kazuma to give up slaying him; and cautious, not acting on impulse. Moreover, he was long-suffering, since the Devil King used endure his generals' antics,[3] and bold-faced, given that he begged to Vanir to become his general in a way he couldn't say "no".[5]

Furthermore, the Devil King used to pamper his daughter too, even treasuring a handmade handkerchief she made to him when she was a child.[3] After growing old, he also started to put her first in his army, what, according to Serena, damaged his management.[2] Lastly, the Devil King, according to Vanir, might plan to pass on the crown to her, in part to prevent his duty of suffering a "glorious defeat" at the hands of the Hero.[1]

History[]

Kyoichi became the Devil King centuries ago, by inheriting the cheat skills of his clan, which includes the ability of power boost his allies, which is why monsters around the world were growing stronger as the time passes. However, he transferred most of his skills to his daughter recently. The Devil King resided in his castle, which has a powerful barrier protecting it, even being able to withstand the power of the Crimson Demons.[2]

In order to catch up with Aqua, who went all by herself to the Devil King's castle, Kazuma and his party, allied to Yunyun and Mitsurugi's party, invaded the Devil King's castle.[6] They eventually reached the Devil King's chamber, and while his allies fought against the Devil King's minions, Kazuma, buffed by Eris and Aqua, decided to face the Devil King himself, whose power was sealed by Aqua, teleporting them both to the boss chamber of the World Largest Dungeon.[4]

After Kazuma convinced the Devil King to fight him by provoking and stealing his prized possession, his daughter's handkerchief, Kazuma fought the Devil King, at first with stealth strategies, with no avail, until he decided to use his Manatites to boost his magic. In the end Kazuma was defeated by the Devil King's superior skills, who decided to tell Kazuma his real name, infuriating him by teasing Kazuma about his name origin.[3]

Even though the Devil King decided to spare Kazuma out of respect for his efforts, even offering the General job and letting him cast Teleport, the latter decided to cast Explosion Magic in the chamber instead, casting it faster than the Devil King's counterattack, and killing himself and the Devil King before the he could reveal his name origin and the reason why the his army was at war against humanity.[3]

Abilities[]

While the Devil King was very powerful, he had past his prime and wasn't the strongest in his army anymore,[1] since his main function is hang in back and strengthen his followers.[3] According to Serena, he also transferred most of his powers to his daughter.[2] Like Kazuma, he was a Jack-of-all-Trades, defeating swordmen heroes with a sword and magic users with magic.[3]

  • Power Boost: The Devil King's primary ability that allowed him to control his Generals and be the Devil King. Any monster got more powerful by his bare existence, and even the weak ones near the Devil King became as stronger as one of his Generals. He was also able to give permanent enhancements by changing stats: Beldia, for example, was given high resistance to Holy Magic.
  • Immense Strength: Even in his old age, the Devil King was said to be able to crush an Ogre's skull with his bare hands.
  • Extreme Speed: The Devil King could move faster than Kazuma's eyes could catch.
  • Magic Resistance: The Devil King had high resistance against magic spells, even surviving his own Inferno spell.
  • Physical Resistance: The Devil King could only be wounded by enchanted weapons, since Kazuma's arrows just scratched him.
  • Status Resistance: According to Eris, the Devil King had resistance against poison and Instant Death effects.
  • Magic: The Devil King could cast magic and curses, and had enough Magical Power to keep up with and even surpass Kazuma's Manatites.
    • Basic Magic:
      • Create Earth: Produces sand or soil full of nutrients. The Devil King could create a massive amount of earth with this spell.
    • Creation Magic:
      • Create Earth Golem: Creates an earthen golem from the ground soil.
    • Advanced Magic:
      • Cursed Lightning: Shoots a piercing bolt of black lightning.
      • Inferno: Summons enormous flames that incinerate the surrounding area.
    • Teleportation Magic:
      • Teleport: Instantaneously transports up to 4 targets to a marked location. Each user can have 3 marked locations for teleportation.

Trivia[]

  • Although he had a Japanese name, it is clear he wasn't a Japanese citizen,[3] but it is suggested in the series that a past Devil King was.[7]
  • It is speculated by Kazuma that one of the main reasons the Devil King is at war with Belzerg is due to the antagonization by the Crimson Demons[8] and the Axis Order.[9][10]

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