Main Quest: Derdriu, the Aquatic Capital

Choose Strategies: The recommended strategies are 'Persuade Balthus' (cost 10, allows recruiting Balthus and obtaining the Hero's Relic Vajra-Mushti), 'Pontoon Bridge' (cost 20, creates a shortcut), and 'Anti-Lance Training' (cost 10, useful against lance-wielding enemies). Other options include 'Call in Archers' (10), 'Stalwart Formation' (10), and 'Stronghold Sabotage' (10).

S-Rank Requirements: To achieve an S-Rank, you must complete the mission within 15:00, defeat 1800 enemies, and take less than 50% damage. This requires defeating approximately 120 enemies per minute. Utilizing the 'Pontoon Bridge' strategy can save time. Spreading out controllable characters and using 'Shadow Slide' can help manage enemy clusters.

Mission 1: Seize the port strongholds: Capture all three strongholds in the starting north-eastern quadrant. The western stronghold has an axe wielder (use swords or Shez). The other two have lance-wielding captains (use axes or a Horseslayer). Use the 'Orders' menu to direct characters. Keep an eye on NPC Judith in the center of these strongholds.

Mission 2: Defeat the ambushers: An imperial army will ambush the north-west quadrant. Rush to the north-west corner to cross the drawbridge. Capture the three enemy strongholds in this area. The westernmost has a Gauntlet user (use bows). The center and east have axe-wielding captains (use swords). Leave a lance user in the north-east quadrant with Judith to defend the Allied Camp from attacking forces.

Side Mission 1: Don’t let the Thief reach the evacuation point: A Thief spawns below the north-eastern stronghold in the starting quadrant and heads towards the south-east exit. Use the lance user stationed in the north-east to defeat the Thief.

Mission 3: Defeat the invading troops: After capturing the northern strongholds, Ferdinand will send Wyvern Riders to attack the Allied Camp. Defeat three of these groups, which appear near the south edge of the Allied Camp quadrant. Bows and swords are effective against Wyvern Riders. Holst will join as a controllable character (Swordmaster) to assist.