In this chapter, you have to defeat the boss to win the battle. The area is separated again by small floating islands but this is not a big problem if you have powerful flier units (which you should have by now) that will allow you to traverse the gaps with ease. The dragon veins in the area will allow you to relocate the bridges along with the units on it to a fixed location. Place the pointer on the dragon vein to know which bridge it will move and where it will be relocated.
There are four chests in the map; one to the SW corner (Waterwheel), one to the middle west (Master Seal), and two in the northeast (Wakizashi, Dragonstone+). The boss is a kinshi knight to the NW corner of the map. When using flying units, be careful of the enemy kinshi knights since they can easily reach your misplaced fliers and take them out. You won’t be able to secure air superiority with them around. Avoid engaging them from the air; if your fliers are in danger, find a safe ground and switch to their partner ground unit to avoid the kinshi knight’s bonus damage against fliers. Having seasoned falcon knights in your army can also help in large coverage, mobile healing.
Once you’ve taken care of the enemy fliers, proceed in prioritizing taking out the softer targets like healers and spellcasters. Make sure that you don’t endanger your units trying to take out these targets; if there are isolated but safer targets then attack those first. Continue working your way through the enemy positions per island and don’t hesitate to fall back and heal whenever necessary. Use the forts if you can’t initiate Combat to get defensive bonuses.