Watch The Setting Sun

Being a secret agent for the Japanese Army during the time up to WW II does have it's difficulties. Tatsuma Kaya is on a mission to find a way to help fund the invasion of Manchuria by the Japanese. This is done in many different ways. All is going well until he runs into Lian, who used to be more than a friend. Now Tatsuma's problems begin as he has to do things that he shouldn't be doing which upsets his boss greatly.