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Tokio Kuryuu is an avid gamer who never thinks about his future and cares only about games. Because he beats most games easily, he becomes excited about the release of The World: R:X and is disappointed when he can't obtain it. When Saika Amagi suddenly invites him to the rooftop one day, she uses a mysterious black R:X disc and transports Tokio into "The World". Tokio finds that he is both physically and mentally present in the game and is soon caught in a fight between Kite and Fluegel. (wiki)