Kami-sama Moude

One summer vacation, the protagonist was invited by his friend to go on a nighttime test of courage.
That test of courage was a ritual called 'Kamisama Moude'.
After completing the ritual involving an old shrine and making strange wishes, that should have been the end of it.
The next day, bizarre occurrences begin to happen around him, and his friends are acting strangely.
Will he ever return to his normal peaceful life?

[Translated from Freem!]