"I want you to play a game. You don't have a choice in the matter. I will come for you soon" was written in a letter received by high school student Seiya Hitotsubashi, who immediately threw it into the bin as a bad joke! How little did he know, soon after he found himself waking up in a sealed room with a bunch of strangers... all asking the same questions... Where are they? Why are they there? And more importantly, how will they get out?!
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