Amayui Castle Meister:Chapter 8A

Main
At start: quest "Improve Equipment and Level". "Sea of Clouds - North Mountain Ravine" free map added.
 * I suggest to get that Marwin's Ring from the chest on North Mountain Ravine map as soon as possible, making your level up life easier.

When Kisnir reaches level 32 - There will be a battle event on the Castle Gate: Victory: Block all Monster Vortexes and defeat all enemies. She or the 3 green allies cannot be defeated. On turn 8 the rest of the party will be deployable as well.

After about 5 days pass, return to the fortress for an event with Gaidal. "Go to [Vinehedes Ruins]" added with quest map "Poison Basin - Vinehedes Ruins".

Poison Basin - Vinehedes Ruins: Victory: Defeat all enemies. There is a boss with "Double Action" skill, but she should be no problem for you. You can drag her out with "Swift" skill activated Diethelm by damaging her a little, then go back far enough. Doing this map unlocks "Poison Basin - Sealed Castle" quest map.

Poison Basin - Sealed Castle:

WARNING: DOING THIS MAP WILL MAKE YOU TEMPORARILY LOSE FIA AND AUTOMATICALLY MOVE YOU TO THE NEXT MAP WITH STRONG GAIDAL BOSS, ALSO MOVE YOU TO CHAPTER 9 BY GOING BACK TO THE FORTRESS!

Victory: Defeat all enemies. When defeating the last enemy, Fia will leave your party, new areas will be unlocked and you have to reach the Event location, which moves you to "Poison Basin - Large sealed Altar".

Poison Basin - Large sealed Altar:

Victory: Defeat Heir Gaidal in 25 turns. Almost most of the enemies are dark resistant/immune.
 * The treasures will not disappear/change even after re-playing this map.
 * In case of upgrading STR of the summons, you do not have to spend time to always capture that lone Bursting Starved Wolf, because there will be more with 2 Monster Vortexes on "Yutorid Wall - Gods Ancient Battlefield" in the Final Chapter A.

After defeating Gaidal, going back to the Fortress moves you to Chapter 9A.

New Game+
3 type EU card: Poison Basin - Sealed Castle