After WW2 the U.S. Government began with privatising government institutes to prevent corruption at the eve of the cold war. They combined C.I.A., D.O.D., F.B.I. and N.S.A. into a new institution - the American Defense Service - A.D.S. for short. Lánhua Wen, codename Orchid, works for the A.D.S. and not only is she the top ranked infiltrator of the organisation, she is also their best female melee fighter, a cunning tactician and has a degree in psychology. And she is supposed to be on vacation...