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Unite悪魔同化ユナイト Yunaito, literally meaning: Devil Assimilation」[1] is a special transformation available to devil hosts who have undergone the Devil-Binding Ritual.[2]


The host draws on the full power of their devil and assimilates the devil into their body, enabling them to contain and control the power of the devil and dramatically increasing their own magic power and capabilities. The host takes on physical traits of their devil, such as horns, a tail, and slit pupils, as well as being garbed in their devil's power.[3][4][5][6][7]

Additionally, the host can integrate the devil's characteristics into their magic. For example, Gimodelo's "Pack" enables the host to create multiple clones of themselves.[8]

If the contract is one between master and servant, the host can easily use Unite due to having full command over their devil. However, a contract of equals makes the process more difficult,[9] requiring the host and devil to work together and synchronize their thoughts.[10]

If the host is contracted to more than one devil, then they are able to unite with more than one devil at a time, resulting in a more powerful unite mode.[11]




  1. Black Clover Manga — Chapter 271 (p. 1).
  2. Black Clover Manga — Chapter 271 (p. 4).
  3. Black Clover Manga — Chapter 270 (p. 13-15), Nacht unites with Gimodelo.
  4. Black Clover Manga — Chapter 278 (p. 4-5), Nacht unties with Slotos.
  5. Black Clover Manga — Chapter 279 (p. 7-8), Nacht unites with Plumede.
  6. Black Clover Manga — Chapter 282 (p. 4-5), Asta unites with Liebe.
  7. Black Clover Manga — Chapter 285 (p. 3-4), Nacht unites with Walgner.
  8. Black Clover Manga — Chapter 271 (p. 5-11).
  9. Black Clover Manga — Chapter 271 (p. 4, 10).
  10. Black Clover Manga — Chapter 272 (p. 14-16).
  11. Black Clover Manga — Chapter 287 (p. 6-8), Nacht unites with Walgner and Plumede simultaneously.


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