The Akuma (demon) Disease is a persistent diesease that makes you hear voices and see a demon that will come out of no where in form of your past regrets and hatred and posses the voice of someone close or a family member like your mother. the only cure that has a 54% chance of working which is to tell someone about the traumas and pains and demons you havent told anyone and it is only contracted when you keep too many things hidden or have too many regrets as it has a 80% mortality rate