The map’s layout is pretty simple. There are maze-like divisions with scattered patches of acid bog. This hazardous terrain damages any unit at the start of the turn. Fortunately, the dragon vein points can be activated to neutralize the acid bogs so bring several royal blood members to ensure that you can activate them with ease. There are also three chests in the eastern side of the map. These chests contain Spy’s Shuriken, Boots, and Seraph Robe.
The boss may be near but you can only reach it by moving around the obstacles. At the start of the first turn, two Faceless will immediately appear and damage any characters you placed on the bog at the starting position. Quickly send a royal unit on the dragon vein then take out the Faceless. As you move along the acid bogs, more Faceless will appear. A couple of Faceless in the northern side carries a Goddess Icon and Bloom Festal. Another one near the boss has 5000g. Finally, once all chests were looted, make your way to the boss and defeat it to end the mission and get a Master Seal.