John was the pet dog of Ryo Asuka and his father, he was a minor character in the animated film, Devilman: The Birth.


John was a dog of unknown breed but it may have been a pug dog or Rottweiler.


John was the pet dog of Ryo Asuka and his father Professor Asuka, however after Professor Asuka discovers the Demon Mask and is possessed he kills the dog, cutting off its head and shoving it on a broken stick of bamboo.

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