The Sunken Tower in "Romantic SaGa 2: Revenge of the Seven Heroes" is a very unique area in the game. If you want to pass the Sunken Tower, you can chase Lokbokai to Salamat. She will open the previously locked giant stone door on the eastern map.
How to pass the Sunken Tower in Romantic SaGa 2: Seven Heroes’ Revenge
Chase Lokboukai to Salamat. She will open the previously locked giant stone door on the eastern map. The nearest entrance is in Amazon Village (teleport directly there and exit along the road). You now come to the Sunken Tower. This dungeon is relatively straightforward. You start high and work your way down (because the tower is sunk).
When you reach level 5, move to the southwest corner. Level 4 is a series of platforms, and standing in the center lowers a bridge. You'll need to build bridges between each platform, gradually making your way around the room and eventually reaching the exit. As you walk up to level 3, the ground will collapse beneath your feet and you will fall to the bottom, where you will be attacked by a water dragon. The dragon is particularly vulnerable to swords, rapiers, and fire magic.
Exit the stairs on the 2nd floor and climb back up to the 3rd floor. In the northwest corner of level 3, you'll find three sets of arches. Enemies are guarding each arch and cannot be lured out. If you hit the wrong monster, the ground will collapse again. You need to go to the middle, then to the right, and then to the left in order. Head up the stairs and you'll find a save and restore point. Recover your BP and save as you will need to fight another water dragon. This water dragon appears to have a new lightning spell that can attack multiple party members. Other than that, it's the same water dragon you fought earlier.
