[Machine Translation] Haruyuki has grown up a whole lot since his encounter with Kuroyukihime. Then Tomoko, a stranger in elementary school whom he calls "big brother," appears at his doorstep. While Haruyuki's cold gaze falls on Kuroyukihime when he sees the two making out, a mysterious incident breaks out in the "Accelerated World". The "Armor of Disaster," a cursed armor that, when taken over, contaminates the mind and attacks duel avatars regardless of whether they are friend or foe. Only Silver Crow, the only Duel Avatar with the ability to fly, is able to capture the mad avatar that repeatedly kills. What is Haruyuki's fate when he is assigned the mission to defeat the "Armor"? The long-awaited sequel to the 15th Dengeki Novel Award Grand Prize winner.