Koga and Iga

Two words are famous for indicating Ninja original place. Koga is not pronounced by Koga but Koka is exact pronounsation in that area. Moreover when Koka is written by brushing word of Chinese charactor 甲　so-called changing writing style looks very similer to changing writing style of 　伊 I of Chinese charactor. So it requires attention when these were written word of 伊　and 甲　in the letter, that cause confusion to distingwish from which these words are used in the letter. So when it comes to writing Koka 甲 and 伊　I, old Ninja pay keen attention to each words. On the other hand, Koka-mono, Koka-shu or Koka person only distingwish from pronounsation. If somebody use Koga without hesitation, only Koka personal understand that he is talking about false word at same time Koka personal observe conversation with doubtful way because Koka personal never trust stranger from other region.　These matters only are understood by personal who were born in Koka. From long time Koka Ninja never trust stranger unless he was born in Koka and raise up there as birth place. Otherwise easy mis-pronounsation was never talked between Koka personal. In addition, it is side effect to classify his real side or his party from his enemy. Sometimes this end up with fatal error.