Is this a good idea for a manga?

it is about a world ruled by gods the 4 most important gods in the manga are the god of the Sky,and the Frozen North yupiteru. the goddess of the sun and the burning west Soru. the god of death and the desolate south Kyuusen.the goddess of the sea and the tropical east.these gods had children who are part of a prophecy told by the Tenkei.. the evil elder gods plan to use the children to escape hell and retake the world the children use their powers given to them by their parents to change the world for better or worse