Emmitter Of Doom

Brian Strider is supposed to be the heir to the powerful family that protects the Earth's royal family but unlike the others he is anything but strong.He goes through a lot to get acknowledged by his family and that's when he meets a mysterious man who gives him a mark that steers him back to the duties of his past life.can he overcome the obstacles that he may face and fulfill his duty to the multiverse as the emitter of doom.