IA is a Japanese VOCALOID developed and distributed by 1st Place Co., Ltd., and was released in January 2012 for the first VOCALOID3 engine. Her voice is provided by the singer [Lia](https://anilist.co/staff/101513/Lia). IA's voice was also used to sing a majority of songs that make up the Kagerou Project created by [JIN](https://anilist.co/staff/113249/Jin).
