Kuwa-jutsu developed in the same way as Kama-jutsu. Both are edged weapons in Okinawa classical martial arts. Kuwa was the weapon used mostly by farmers, and it has a sharp edge and handle for defense and attack. Kicking up mud at an attacker is one of its unique moves. Kuwa-jutsu was studied by martial artists and upgraded with the influence of Chinese martial arts before becoming an actual warfare weapon. Outside of Okinawa, in Fuzhou and Shanghai, there are martial artists who are still able to use this jutsu.