Tower Block A 塔A区画, tou-ei kukaku?, lit. "Tower Sector A") is the topmost part of the Tower of Harvestasha, located above the Reyvateil country of Clustania, and it extends beyond the Blastline up to a point called Ku. This place is also where the Rinkernator is located. Depending on the actions taken by the player, and on the performance displayed on a boss battle that takes place here, this could be the final dungeon of the game.