LUKA MEGURINE!!
Megurine Luka, codenamed CV03, is a Japanese VOCALOID developed and distributed by Crypton Future Media, Inc., and was initially released in January 2009 for the VOCALOID2 engine. She is the third release of Crypton's Character Vocal Series and is a Character Voice VOCALOID. In March 2015, additional voicebanks and an upgrade to the VOCALOID4 engine were released. Her voice is provided by the Japanese voice actress and singer, Yū Asakawa, who was recorded in Japanese and English for the voicebank.

According to KEI, her design was made to be asymmetrical due to her bilingual software so she would look different in various angles. Unlike previous mascots in the series, her costume is not based on a school uniform. She is based on the "Yamaha VL1 VL-1". Her dress was designed to look old-fashioned to make her represent the past. The "∞" on her neck area represents "sound around". Her design incorporates woodwind and brass instruments. The gold curl design on her chest mimics brass instruments and a circulatory organ. The blue jewel near her throat represents moisture in the air and water drops.

VOCALOID fans tried to assign an item to Luka as they had done with past VOCALOIDs, sparking heated debate over the choice. Tako Luka marked the end of the "Item Wars" system where items were assigned to VOCALOIDs based on memes. Despite the Internet Meme's popularity, she is often seen with a tuna fish. This is a result of comparing the Japanese word for "tuna" (maguro) with her last name. Megurine Luka was the first VOCALOID designed to fully support producing vocals in both Japanese and English, and the first addition to the Character Vocal Series software line characterized as an adult.

Megurine Luka was the first VOCALOID designed to fully support producing vocals in both Japanese and English, and the first addition to the Character Vocal Series software line characterized as an adult.

Despite the inclusion of English, Megurine Lukawas not aimed at a worldwide audience. Instead, she was focused primarily at Japanese producers. Her VOCALOID2 software and promotions therefore were restricted for a long time to within Japan and not even software support was offered in English.

Her surname combines "Meguri" and "Ne", while the name "Luka" invokes the homophonous pronunciations of 流 (ru, flow), 歌 (ka, song) and 香 (ka, scent), thus making: "songs to all around the world as scent spreads."

Her name is based on her concept, which is "travelling sound", meaning words which are translated from one language to another.

Her codename of "CV03" means "Character Voice 03".

Luka was the first VOCALOID to impact Hatsune Miku's popularity. Only a few days after her release, many songs were produced. On the 70th Weekly VOCALOID Ranking (February 2, 2009), many songs featuring Luka appeared in the Top 3. This event knocked the popular song "Miku Miku ni Shite Ageru" and songs produced by ryo (with the exception of "Melt") out of the Top 30. "RIP=RELEASE" had taken the #1 spot and had earned a total of 843,233 points, making it the song with the highest one-week score.

Overall Luka remains the 3rd most popular Crypton VOCALOID. At times she claims Kagamine Rin's 2nd position, though Luka does not always maintain that place. Some of this is caused by Kagamine Rin's popularity sometimes being contributed to by Kagamine Len's popularity.