The Imperial Japanese Army had an interest in using autogyros as artillery spotters and had an Kellet KD-1A two seat autogyro imported from the United States. It was totaled in an early flight test.
The wreckage of the Kellet was sent to the K.K. Kayaba Seisakusho to develop a copy. The Kayaba design team came up with a two seat autogyro copy that met Japanese production standards.