My friend and I have some different perspectives about the main story of our manga (unlimited minds). I want to pass the idea of how reality depends how your mind wants to represent. In this universe exists an energy based on ether. This energy can be only used with hard mental training in this world. In addition, the information about this energy is kept secret by the government. In this universe exist more than one dimension, existing more than human beings. There are dimensional gods, celestial gods and dark gods (demons).
The era is on high technology and development of the cities, allowing some complex situations of social relations. The academies of ether permit the creation of people who are able to manipulate the ether to change the reality. These are skills, like magic but not the same, as needed hard mental effort.
The government doesn't know yet how to manipulate ether like the academy does but need them to do dangerous missions. The academy has much more power than the government however they need cash. Power doesn't buy things by the way.
In this earth has the sky and hell (but hell is in another dimension). The sky on earth is the place levitated by magicians in the ancient war ( a war between wizards and kingdoms).
In the sky have the celestial gods and in the hell have the demons gods. The two constantly influence humans on earth through the emissaries. After the magicians war, the emissaries of sky were sent to earth to teach the special humans to manipulate the ether. In the same way, the demons sent the dark emissaries to create sects of wizards to free the Demon of the last cliff of hell.