Sword Birth
Sword birth Yuuto
Kiba creating Demon Swords through Sword Birth
Kana 魔剣創造ソード・バース
Romaji Sōdo Bāsu
Other Names Demonic Sword Creation
Type Sacred Gear
Forms Holy Eraser
Flame Delete
Replenish Calm
Sword of Betrayer
Abilities Creates Demon Swords
Creates Holy Demonic Swords (Sword of Betrayer)
Wielder(s) Yuuto Kiba

Sword Birth, also known as the Demon Sword Creation, is a Sacred Gear wielded by Yuuto Kiba.


Sword Birth can take on the appearance of any sword that the user may think of.


Sword Birth is one of the two Sacred Gears that is used by Yuuto Kiba.

In Volume 3, Yuuto manages to gain his Balance Breaker, the Sword of Betrayer, after fusing together the souls of his friends- whom were victims of the Holy Sword Project and his Sacred Gear, Sword Birth.


Sword Birth has the ability to create numerous Demon Swords of different attributes according to the will of the user. The swords, however, are not as powerful as one of the Excalibur fragments. It can also be used create countless Demon Swords from any surface at a certain distance from the user that can also immobilize opponents.

After gaining the Sword of Betrayer, Sword Birth can be use to create Holy Demonic Swords of different attributes. The Holy Demonic Swords are shown to be roughly as powerful as four of the Excalibur fragments combined.

In Volume 6, while Issei was in Juggernaut Drive, Yuuto was able to create a temporary shelter made of swords using Sword Birth.


Holy Eraser

Holy Eraser, also known as the Light-Devouring Sword, is a Demon Sword that devours holy energy. He first uses it against Freed Sellzen in their initial battle.

Kiba would create several more of these to counter the Anti-Monsters, which used beams of light to kill Devils, made by Leonardo of the Khaos Brigade's Hero Faction.

Flame Delete

Flame Delete, also known as the Flame-Freezing Sword, is an ice Demon Sword that devours flame. Yuuto uses this sword against Karlamine in the Rating Game between Rias and Riser.

Replenish Calm
  • Replenish Calm

Replenish Calm, also known as the Wind-Calming Sword, is a Demon Sword that absorbs wind. Yuuto uses this sword against Karlamine in the Rating Game between Rias and Riser.

Dragon Slayer

Dragon Slayer is a sword specifically made to kill Dragons. The most difficult kind of Demon Sword to produce, Kiba states that he originally started developing it to stop Issei, should he ever go berserk in Juggernaut Drive again. After the development of Cardinal Crimson Promotion, he stopped working on it, but started to develop them once again in order to defeat Siegfried.

Sword of Betrayer
  • Yuuto forming the Sword of Betrayer

Kiba's irregular Balance Breaker of Sword Birth, the Sword of Betrayer (双覇の聖魔剣ソード・オブ・ビトレイヤー, Sōdo obu Bitoreiyā), also known as the Holy Demonic Sword of Twin Supremacy, is a fusion between a Demon Sword and a Holy Sword. It debuted during the fight with Freed after Kiba "merged" his Sacred Gear with the spirits of his fallen comrades who were the victims of the Holy Sword Project. The creation of Kiba's Sword of Betrayer became possible after both God and Satan died in the previous war, thus ending the balance between Holy and Demonic powers which allowed the Holy Demonic Sword (聖魔剣 Seimaken) to become possible.



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