Prerequisite / trigger
No exact calendar or relationship gate is documented in the checked source; follow the active story journal and mailbox.
Primary NPC: Fiona โJournal route
Objectives in order
- 1
Ask the witches about the cauldron.
- 2
Deliver two Mana Essence to Fiona.
- 3
Wait for Fiona to return it.
Completion
Rewards and unlocks
- Cauldron blueprint
- Potion Brewing