In the seven years since the events of the original series, Altimit OS been replaced by Altimit Mine OS and The World has become The World R:2, a dangerous game overrun by player killers and where lawlessness abounds. Follow Haseo as he chases Tri-Edge and gets involved with Project G.U. and mysterious SIDA who plague The World R:2!

Story by Tatsuya Hamazaki and Art by Yuzuka Morita.