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Raging Kesu (怒涛のケス Dotō no Kesu) is one of the Mighty Quartet; General Szabo's subordinates, in the Blue Dragon series.



Blue Dragon[]

Raging Kesu is awoken by Szabo when the party attacks the flying fortress. They are the first Mecha Robo fought. Even though the party defeats them, they reappear with their comrades later on as Grand Raging Kesu and fights alongside them instead of one by one. Their last appearance is in the Primitive Cube where he forms Ultimate Szabo with the other Mecha Robo. They form the left arm part of the machine.

Blue Dragon Plus[]

Raging Kesu reappears in Blue Dragon Plus alongside the rest of the quartet. Their goal is to remove Szabo's Eternal Engine to make him evil again and return to their side. Raging Kesu only appears as Grand Raging Kesu in this game however they retains their usual name in dialogue in the Monster Book.

Blue Dragon: Awakened Shadow[]

Raging Kesu and the quartet's role in Awakened Shadow is similar to Plus where they want Szabo to join their side again. In this game, they are capable of making weaker clones of themselves (that are blue coloured instead of red) that act as minor enemies in their stage. They tell him how they despise the idea of a peaceful world and want to cause chaos with Destroy. Despite Szabo's pleas for them to join him, the quartet fuse with Destroy. Once defeated, they disappear and Szabo mourns them.


In the anime, Szabo sends the quartet to attack Jiro and Minotaur. They fuse into Ultimate Szabo in the anime too however their combination is different. Raging Kesu acts as the arms in this version of the form.


  • Angry Waves: increases speed
  • Special Knife: throws knives at one party member
  • Knife Storm: shoots knives into the air which damages all party members
  • Storm and Stress: shoots knives into the air which decreases the element of every party member



  • "Heh heh heh... you took out all three of them? Not bad for humans. But you face Raging Kesu now, and I won't go down like those three did. I'm going to chop you up with great care... And relish every last second of it!" (first appearance, Blue Dragon)
  • "Die!" (using a special attack)


  • Raging Kesu's name in the English dub of the anime is Flashing Bladed Kesu
  • Despite having a very feminine appearance and voice compared to the rest of the quartet, Raging Kesu still uses male pronouns