The reference to "18" in naming this Kata has a couple of interpretations. Like Sanseru, there is suggested a connection to Buddhist philosophy. Another insinuates "18 guards for the King". The most apparent and most meaningful in the naming of Sepai is again from the martial arts development and the use of attacking pressure points. 18 is one half of 36 suggesting that perhaps an alternative set of attacks and defences of preferred techniques and strategies from the original Sanseru 36. Sepai is found in Monk Boxing.