Ki

Ki (氣) is a natural energy given off by people and objects when they move. It is separate from mana.

Overview
Ki can be used to predict attacks and others' movements, including non-living things, and to detect lies.

It is rare for individuals' Ki to be the same.

According to Yami this technique is used in his homeland,"The land of the rising sun." or Nippon which has the exact same kanji reading as Japan.....