This Seeking Tech guide will show you how to get the Bring Out Your Dead trophy in Jeanne d’Arc. To unlock this, you need to complete the Cemetery stage.
This location will only be available when you beat the game and create a clear save file. When you load back into your clear save, you should see the Cemetery pop up on the world map.
As for the stage, your first priority is to get the treasures located on the map since these contain powerful equipment. Your first visit to the Cemetery is also the only way to get the Goddess Armor, as it will disappear in subsequent visits.
The enemies here should not be an issue if your party is at least level 60.