Megurine Luka, developed by Crypton Future Media, is depicted with a mature, calm personality, often sophisticated and empathetic. As a Vocaloid, she stands out with her bilingual (Japanese and English) mezzo-soprano voice, catering to a broad range of music genres from pop to jazz. Luka's deeper, clear voice is praised for its emotional conveyance, making her popular for both upbeat tunes and ballads. She loves tuna and squid, and can be playful at times when needed. She’s like a big sister.