Since meeting Kuroyukihime, Haruyuki has managed to grow up a bit. But suddenly this mature Haruyuki is confronted by Tomoko, an elementary school girl he's never met before--who calls him "big brother"? When Kuroyukihime sees the two of them flirting, the look she gives Haruyuki is like a cold knife stabbing him in the gut Meanwhile, in the Accelerated World, something very mysterious is taking place...
A cursed piece of Enhanced Armament called the Armor of Catastrophe is making the rounds, polluting the minds of the duel avatars that don it and causing those avatars to attack at...

The silver wings responsible for the rise of Nega Nebulus, the legion led by Kuroyukihime, are weakening During the battle with the mysterious Acceleration Research Society, Haruyuki sustained corrosion damage from the revived Chrome Disaster, and he has still been unable to escape its effects. The Seven Kings of Pure Color take this very seriously, and soon they hand down their judgement: purification. Now Haruyuki is faced with a choice--undergo the grueling purification process, or have a bounty on his head and risk being cast out of the Accelerated World altogether

2046--Haruyuki, member of the reborn Nega Nebulus, is a new Burst Linker. Through hard work, he finally reaches level two--only to find himself with just eight burst points left With one wrong move, Haruyuki could lose access to Brain Burst forever...Refusing to take his friend's points, Haruyuki turns to the Accelerated World "bouncer," a mysterious person with the duel avatar Aqua Current.
One year later, the Black King, Kuroyukihime, is on a school trip in Okinawa With nearly all Burst Linkers located in Tokyo, Kuroyukihime assumes she'll have a relaxing vacation...until she's...