Society has become more and more reliant on the internet and technology as time has moved forward. That’s why in this world, a disease has grown rampant called Net Addiction. In an attempt to cure those afflicted by Net Addiction, a facility has been created to cure those afflicted. Hibiki, a young man who has just been told he is to go to this rehab center is horrified to learn that it is nothing more than a deadly prison for those who are sent here. Now, Hibiki must find a means to survive in this dark place.

The Ousama Game, a deadly game where participants must follow the orders of the so-called King unless they wish to be penalized in horrifying ways. High school student Nobuaki Kanazawa had recently endured the nightmarish game and was deemed the winner after seeing those closest to him perish. Having transferred to a new school to hopefully live a peaceful life, Nobuaki is still haunted by the events of the Ousama Game and wishes to just move on however he can with his life. However, when Nobuaki’s class receives a strange text, he is horrified to see the Ousama Game has once more started up in his new class. Now, Nobuaki must try to once more try to find out who the King is and see if he can help his new classmates survive this deadly game.