Credo was the Captain of the Holy Knights, and earned his title due to his ability with a blade and his unwavering loyalty to the Order of the Sword and its ideals, not to mention to Sanctus and his teachings. As the Captain of the holy knights, he has hundreds of soldiers under his command. Coincidentally, he is also the older brother of Kyrie. He treats Nero as part of his family, despite the youth's insubordination.
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