“You mean the man’s own servants won’t say who murdered him because it wouldn’t be polite?”

A new assistant for the ambassador arrives at his new assignment, only to find out that the ambassador is under arrest for murder. The only solution he can see is to find out who really did the murder, but quickly finds out that in the imperial palace, polite lying is an art form. How can he find out who the murderer is, when nobody will tell the truth?