A cover of ‘Razorlike Blue’ was recorded for the CD by the artist ‘Megurine Luka (巡音ルカ "Megurine Ruka")’. Megurine Ruka is a humanoid persona voiced by a singing synthesizer application developed by Crypton Future Media, headquartered in Sapporo, Japan. She uses Yamaha Corporation's Vocaloid 2 and Vocaloid 4 singing synthesizing technology. All songs were written by the pillows. Tracks 1,3,4 and 5 written by Sawao Yamanaka. Track 2 was composed by Kenji Ueda, with lyrics by Sawao Yamanaka. All pricing as at release date(s). All credits taken from album liner notes.