This is part of the CROSS GATE 2001 collaboration between record labels Matina, L∞p Ash RECORDS, and Donuts Record West, and visual shop Third Stage (under its publishing branch, 【kapparecords】). Various message CDs, featuring different combinations of artists from those labels, were sold at Third Stage throughout the latter half of 2001.

This is a special box set which was made-to-order based on customer preorders (although it had a limitation of 200 copies in total). The set includes a cardboard sleeve box, which includes two empty 4-disc jewel cases (to hold volumes 1~8), plus a third normal jewel case housing two bonus CDs.

The first bonus CD features a “radio edit” of the song ・・・Air (from MIRAGE) by Matina session band Kansai-Ume-Bara-Gumi (関西梅薔薇組), which had been played as the ending BGM for volumes 1, 4, 7, and 8. (The full version was featured on the Third Stage × Matina collaborative omnibus, PRELUDE ~Third Stage Limited Edition~.)

The second bonus CD is the Kaiteiban of CROSS GATE 2001 -Memorial Radio Disc- vol.4 ~Matina radio disc~. This reprint of the [original version][1] features the same comments, but plays the correct allure idea song sample [MiTEmiNUFURI (見テ見ヌフリ)].

[1]: