Freely distributed at Dali's 2012-08-08 sponsored event, DALI COLLE 2012 finale TOKYO (ダリコレ2012 finale TOKYO), at which they announced their impending disbandment.

The CD is packaged in a simple paper sleeve, with the flap sealed closed by a sticker. The title Kaifuuhi (開封日) literally means “opening date,” and below that is written a date and time at which the CD is meant to be opened and finally listened to: 2022-08-08 00:00, exactly ten years after the live at which Dali announced their disbandment. The contents of the CD are secret.