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Hayakawa Aki
Aki Hayakawa was a Devil Hunter, a person who specialized in hunting and exterminating demons that threatened humanity. He was a skilled fighter, with years of experience under his belt, and had a reputation for being both vengeful and overbearing. Aki had taken on the role of a protector, ever since he was a child, when his family was killed by a powerful demon. Since then, he had dedicated his life to hunting down and destroying any demon that crossed his path.