Trion

Trion (ワールドトリガー, Torion) is energy in any living body and the power source for the trigger. In the world of World Trigger trion play a major role.

Trion Organ
Trion is produced by an internal organ, better known as the "Trion Organ", every human posses this organ and its located next to the heart. The ability of the Trion Organ differs from person to person, the ability of Trion Organ is directly connected to the triggers power, if the same trigger is used by different people differences will appear concerning their power output.