My parents, brother, sister, fame—I've discarded all of them. All I have is this sword, and the oaths I make to it.
~ Ouma Kurogane


Ouma Kurogane is the older brother of Ikki and Shizuku Kurogane and one of Japan's two A-Rank student knights. He is also a guest member of Akatsuki, a team of mercenaries hired by the terrorist group Rebellion to infiltrate and win the Seven Stars Sword Art Tournament.

Powers and Stats

Tier: 7-BHigh 7-A with Kusanagi

Name: Ouma Kurogane, Sword Emperor of Wind

Origin: Rakudai Kishi no Cavalry

Gender: Male

Age: 17

Classification: Human, Blazer

Powers and Abilities: Superhuman Physical Characteristics, Wind Manipulation, Magic, Master Swordsmanship, can use wind to bend the light in his surroundings to turn himself invisible, can manipulate air resistance to make his strikes faster and sharper, can use magic to boost his physical stats and create a barrier around himself

Attack Potency: City level+ (Casually demolished base Stella). At least Large Mountain level+ with Kusanagi (Should be at least somewhat comparable to Stella's Katharterio Salamandra)

Speed: At least FTL (Blitzed Stella). FTL+ with sword attacks and Amaterasu (Amaterasu was stated to exceed Dragon Spirit Stella's reactions).

Lifting Strength: At least Class M (Much stronger than Ikki)

Striking Strength: City Class+

Durability: Large Mountain level+ (Got up after a punch from Dragon Spirit Stella Vermillion.)

Stamina: High, can fight for extended periods of time

Range: Over one meter with Ryuuzume, over fifty meters with magic

Standard Equipment: His Device, a white Nodachi named Ryuuzume

Intelligence: Has years of combat experience, but is arrogant and doesn't know when to fall back

Weaknesses: Very arrogant, doesn't know when to retreat, usually refuses to fight against weaker opponents, Kusanagi gets weaker with each use after the third, destroying Ryuuzume should deal enough mental damage to knock him out

Notable Attacks/Techniques:

  • Kusanagi (月輪割り断つ天龍の大爪 lit., Moon Severing Sky Dragon's Talon): Ouma's strongest Noble Art. By condensing his magic into Ryuuzume, Ouma can compress the surrounding air into his Device, creating powerful storm like blades that can easily surpass 50 meters in height. The Kusanagi's full strength easily surpasses even Stella's Kalsariteo Salamandra and was able to turn Hagun Academy's school buildings, practice arenas and asphalt paving the roads into rubble. Kusanagi, however, has a flaw, evident when Ouma noted a decrease in power by the third usage during his short fight against Nene.
  • Shinkuuha (真空波): A popular offensive technique among wind users that tears through air, creating a small corridor of vacuum.
  • Mukou Kekkai (無空結界): Ouma creates a powerful updraft to deprive his opponent of oxygen and mobility. This technique leaves the opponent with only ten minutes worth of oxygen if they don't do anything, and one minute if they continue to fight.
  • Fuujin Kekkai (風神結界, Wind God Barrier): A defensive Noble Art, where Ouma stabs the ground with Ryuuzume, creating a tornado around him.


Notable Victories:

Notable Losses:

Inconclusive Matches:

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