Star Gate Detective Agency

I heard I'm searching for a shadow. During a chance meeting at a bar, detective agency director Herl is badly deceived. To track down the person responsible, he launches a series of deliberate and accidental investigations, only to discover that this person has many completely different identities, each with enough power to topple a planet's government. And his true purpose is... A story set on the eve of the war of division, fifty years ago.