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Deneve using the Double Sword Style

Undine (the Organization's former No. 11) is the first one shown to utilize this style, earning her the title "Undine of the Twin Swords."[1] Later, Deneve (the Organization's former No. 15) adopts this style in honor of her fallen captain.[2]


Undine constantly releases her yoki to enhance her muscles, giving her monstrous strength and allowing for the use of two swords.[3] Releasing yoki also gives Undine the bulky appearance she needed to get the Organization's approval in having two swords.[4]

Following Undine's death, Deneve took it upon herself to carry Undine's sword and practice using it to great effect.[2] At present, her strength is enough to wield the two swords effectively without using yoki.


  1. Claymore Databook 3
  2. 2.0 2.1 Claymore Manga: Chapter 60
  3. Claymore Manga: Chapter 50
  4. Claymore Manga: Chapter 55