The story is like a GM creating and expanding the game to accomodate more players, as well as fixing loopholes in the system, etc. It's like the GM created a character for himself in order to experience his creation. The Players did not even know that they are interacting with the GM himself ? characters are also fine, side characters have enough exposures, no more, no less. A bit interesting because we only know that Ocean Blue is a type of Incomplete God right now (was a complete god in the past), as other types of God may or may not appear in the future.