The Secret: Hidden truth in rotten lands

Years ago, in front of the public eye, a live broadcast worldwide shakes every city and every corner of the world "Brothers from all nations, we have kept our existence hidden for a long time and only reveal ourselves to the public today to announce our dissolution, the organization we kept on this world as deities, is definitively dissolved".
Now years later, after wars and terrorism everywhere worldwide, the users of supernatural abilities have on them the eyes of the world, without the organization who kept their existence and powers under control the world has changed, placing those users on the center of attention.
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Follow Mike Blood's journey, a supernatural ability user (or PhySEC user) of low utility and low potential, son of an unknown father and normal mother, he discovers that the normal life of his family wasn't as normal as he thought when his supposed deceased grandfather reveal a secret through a letter he leaves for Mike in an inheritance.