KID an acronym standing for Kindle Imagine Develop, was a Japan-based company specializing in porting and developing bishōjo games. KID was founded in 1988, with capital of 160 million yen. In the early 1990s, it served primarily as a contract developer. Notable titles from this era include Burai Fighter, Low G Man, G.I. Joe, Isolated Warrior and Recca. In 1997, it began porting PC games to games consoles. In 1999, it released an original title called Memories Off on PlayStation, which later became its first well-known series. In 2000, it released the original title Never 7 The End of Infinity, the first in the Infinity series. KID also created the popular underground PlayStation game Board Game Top Shop. In 2005, KID became a sponsor of the Japanese drama series Densha Otoko.

The company declared bankruptcy in 2006. However, in February 2007 it was announced that KID's intellectual properties had been acquired by the CyberFront corporation, which would continue all unfinished projects until its closure in December 2013.