For those doing the platinum skills quest for moving hp recovery the npc is located in the swordsman guild. This is located on the left hand side of Izlude in the middle of the map. It's on the exact opposite side from the guide provided to players on ratemyserver.
of course, you'll also be required to have a moth wing 200 empty bottles (save em from training ground!!) and be job lvl 35. Don't overlook this skill. It will save you pots while farming!
Remember the motto of all swordsmen everywhere, Knights Rule and Saders Drool!