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Q. How do I build structures for the Aether Raids quests being held?
You must get the limited-time Aether Stones from Quests & Missions after completing the Aether Raids quests.
After getting the Aether Stones, tap Aether Keeps, then Edit Aether Keep, then Build/Improve to create them. (You may need to tap More on the Edit Aether Keep screen to display Build/Improve.)
Once the event ends, the limited-time Aether Stones will disappear.
Q. How do I build limited-time structures distributed in past campaigns?
You can build them using R&R Affinity by tapping Aether Resort, then Edit, then Build/Improve, to create them.
Q. There aren't any limited-time structures in Aether Resort that couldn't be made in the past.
Structures that could not be built during the event will be added to Aether Resort after a certain period of time. Then, the structures can be built. The timing for when the structures will be added to Aether Resort is not specified. Please wait for their addition.