Senjutsu Choukoukaku Orion

The story is using a mix of various religions teachings and some Lovecraft mythology as a background, set in a far future and distant world, in which "psycho science" is trying to change the destiny of the mankind, summoning supernatural beings and magics to achieve this goal.

But according to the Murphy's Laws, when everything is too well planned, there is always something that will go wrong, and in Orion you can be sure that it will follow this patern.