Literally translated: “13.” Usually interpreted as “Thirteen modes of attack and defense” or “13 positions to attack/defend from”.)

Seisan :
One of the techniques of “SANCHIN”, “SEASAN”, and “SANSEI RYU” transmitted from China.
Existing in China Kenpo.
“ryu so ken” “ko sou ken” “kaku sou ken” is called the “ryu ko kaku(dragon and tiger, crane)”.
It was created based on “turuken” in that.
It is realistic form.
This form requires speed and instantaneous power.