Kias
It is a unique taboo concept that appears in the myths and folk tales of Kia, Geas or Gesh, Gia is a kind of curse, which can be paradoxically blessed. If someone under the influence of a Kias breaks the taboo, the offender may be disgraced or even killed. On the other hand, it is said that it is possible to gain strength by knowing the gyas of another person. Usually a woman gives a man a hint of grief, and in some cases there is a folk tale that turns out to be a goddess or other powerful being. Kia is a key element in the heroism of Irish myths, including the story of Kuhulin. It is typical for a hero to fall into a situation where he or she mistakenly or intentionally violated Kiyasu, or in violation of the other side in order to defend Kiyasu while holding a plurality of Kiyasu.