I want to make sure that Memoria Stones cannot be accidentally Converted.
Locking Memoria Stones will prevent you from Awakening, Ascending, or Converting them.
To lock Memoria Stones, follow the steps below.
-How to lock:
Allies > Memoria Stones > Details of target Memoria Stone > Tap the lock icon in the lower left
*If you want to use it as a material for Awakening or Ascension, please unlock it.