Aki Hayakawa
Aki has been a mainstay of the series from the beginning, and he has appeared in numerous action sequences. Because of his agreements with the Fox, the Curse, and the Future Devil, Aki possesses remarkable prowess and power.
With the aid of Curse Devil, he is able to conjure a nail-like blade capable of dealing tremendous damage. However, the cost of using it is a shorter lifespan for him. Future Devil, as the name suggests, gives him a glimpse into the future so he can plot his next few seconds of action. Once the Fox Devil has been called, it can either eat its enemies or shred them to pieces.
