This is the last kata in the series of katas that start with the letter "J". Ji'in is known for a series of circular movements that introduce two new techniques, chudan-shuto-uchi (middle level sword hand strikes) and chudan-tetsui-uchi (middle level hammer fist strikes). This kata will test a student’s balance which they will find can be improved by placing the proper emphasis on the correct direction of attack.
This kata contains 34 movements and should take the student approximately 45 seconds to complete. The correct performance of this kata is required in order to advance in rank from Ni Dan (2nd Black Belt) to San Dan (3rd Black Belt).
There are two kiai points in Ji'in. The first one occurs on the last jodan-shuto-uchi (middle level sword hand strikes) at the top of the embusen. The second kiai occurs on the very last movement of the kata, chudan-zuki (middle level punch).
To return to a ready position after the last movement of the kata leave your right foot in place and withdraw your left foot so as to stand up once again facing forward in hachiji-dachi (natural stance). You must now formally end the kata. You do this by bringing your left foot half way in towards your right foot and your right foot half way in towards your left foot so that you are now standing with your feet together. At the same time as you bring your feet together also bring your hands to your sides so you are again standing in heisoku-dachi (attention stance). Now rei (bow). After bowing, step out with your left foot and then your right foot and once again stand in hachiji-dachi (natural stance) while at the same time bringing your hands from your sides and hold them in a ready position in front of you with your fists closed.