Her introduction was firstly by code (CV03) and her existence was made known during the Kagamine original release promotions and was intended to be the last of the CV series vocals, on 05/01/2009 the first letter of her surname was revealed with the promise of more information to come.On the 06/01/2009, Megurine Luka was revealed.Like its previous two characters, Crypton advertised Luka's vocal database as "Japanese".
However, like with Rin Kagamine, a second voicebank was shown shortly before her release that gave her capablities to sing in English. This was revealed on the 14/11/2008.At the time of Luka's release, there was a growing interest in English speaking Vocaloids. Luka offered both languages for the price of one to Japanese Vocaloid users giving them the chance to test their skills at English capable Vocaloids. Her English voicebank was produced in a series of experimental recordings, and her vocal provider Yū herself was not used to the methods used in the recording process. The process took 8 months to produce the voicebank.
Crypton Future Media chose her name to express its hope that she will transcend borders and cultural barriers. Luka was designed by the Japanese illustrator Kei, who had previously created the designs for Hatsune Miku and Kagamine Rin and Len. Demo .VSQ files for "UP" were made able to be downloaded from the Crypton Future Media blog as part of promotion for her release.