Note: There is an additional photoetch set for this- BRL48081 (Product Link) which includes a much better seat, vents, and plates.
The Yokosuka MXY7 Ohka was one of Japans last ditch Kamikaze weapons. It was a purpose-built, rocket-powered human-guided aircraft. The model 22 was to be powered by a TSU-11 thermojet (pulse jet) engine that increased the effective range of previous Ohka’s. This also reduced the size of the warhead to 600kg. The intent was to launch this from a P1Y3 Frances bomber and sink shipping. These never saw action but were produced and one now sits in the NASM.