Ar nosurge Genometric Concert Crystal
The Ar nosurge Genometric Concert Crystal is a special edition disc that was exclusively sold at the Gust Shop as a made-to-order item.
The disc contains the songs from both Ar nosurge Genometric Concert Side Red Divine Empress ~Tentouki~ and Ar nosurge Genometric Concert Side Blue Dancer of Time ~Tokikagura~, as well as the opening theme song from Ar nosurge: Ode to an Unborn Star, To the Songless Hill -Harmonics Pre=Ciel-.
What separates this disc from its standard counterparts is the fact that instead of being made from the typical materials used for CDs, it is made from optical glass and coated in 24 carat gold, which are the factors for its high asking price of 80,000 yen.
Only around a thousand discs of this type were produced, each of which have their own unique serial numbers and come in special cases.