Kai Yamamoto. Japan's late president son and one of the individuals who suffered and witnessed the torment and homicide which was brought upon his parents by Mr Allen now he wants nothing but the justice for their murder by him. But Freya Allan Mr allen's daughter and a wanted psychopath who plans to end father's life sees is Kai as a threat resulting the both of them engaging in a misleaded war with each other The Folk Of Insanity Is an action oriented thrilling series about the underworld's most wanted and insane individuals who all attempts to one up each other to get what feed their endless amount of greed ~ This a wild game of survival ~