The Gods' Moonless Night

A game built around the game of Werewolf.

A game that makes people disappear in real life.

A game that even the world itself is powerless against.

The protagonist's third uncle went missing because of this game. To investigate the reason for his disappearance, he enters the game himself.

After making the rankings and gradually delving deeper into the game with his teammates, he discovers that the game is connected to countless otherworldly planes.