The protagonist takemoto Akira, is just an adult shut-in who likes playing games. When finished completing the gal game he bought recently, Akira was killed by a thief who got in his apartment 「Seriously, I just finished the game」. Though depressed for a brief moment, he soon realized he reincarnated into the world of a game he played before his death! Even so, the person he reincarnated was neither a protagonist nor an antagonist but a Mob called Nakahara Kazuki, can he survive in the world of apocalypse.