A set of 12 first edition Vocaloid novels. "Kochi Sachi" volume 1 is a second printing, but all others are first editions. The special editions and "Juumenso" have all bonus CDs included. Also, "Noushou Sakuretsu Girl" is a comic. They have been stored on a bookshelf away from sunlight after being read, and since quite some time has passed, some may have minor corner wear, but there is no sun damage and the pages are very clean. Please feel free to comment if you have any other questions.