One day a long time passed after the massive line disconnection incident involving the entire “accelerating world”. The information of enemy of unidentified unknown that suddenly appeared was brought under the “nega nebulus” which usually enjoyed the match as usual. Duel Avatar “It should not exist” that appears before Haruyuki who are going to investigate. And, a mysterious girl avatar wielding two swords. Eventually the situation developed before involving the Nikyo and the Seven Legion -! Is it? Send with complete drawing, original story only for the application. Locate the accident that occurred in “Accelerated World” as a member of “Nega Nebusu”!