Ouija Japan Ending Explained [SPOILER!]

SPOILER ALERT: the following article contains massive spoilers, including the ending. If you have not yet seen the movie, proceed at your own risk, or better, come back to this article later!

SPOILERS AHEAD

Ouija Japan Plot Summary and Synopsis

Karen, an American living in Japan, desperately wants to fit in and plays the Japanese Ouija with her peers, unwittingly disrespecting a local deity who sets her up to fight her newfound friends in a deadly game of battle royal.

Source: Wikipedia (CC BY-SA 3.0).