When you upload anime screenshots, it shouldn't have any borders. It should be cropped. However, I don't have a good image source to replace this shot nor do I know what episode it comes from.
A 15-year-old, whose left arm can transform into a monstrous claw and destroy akuma. As ordered by his master General Cross Marian, Allen becomes an Exorcist for the Black Order which is an organization attempting to stop the Millennium Earl.
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