From what I know, Phase 1 had three guys in Brit and one guy in Tokuno.
Two of the guys in Brit were located at the castle entrance, the other at the often underused East Brit Bank.
The guy in Tokuno is located in the same building that the guy for the Treasures of Tokuno trade in is located.
As far as Phase 2, I could have sworn I read something somewhere... but can't remember what or where I read it... sorry!!!