Prerequisite / trigger
No exact calendar or relationship gate is documented in the checked source; follow the active story journal and mailbox.
Primary NPC: Sabrina โJournal route
Objectives in order
- 1
Visit Webb of Wonders.
- 2
Bring Sabrina three Copper Bars and three Iron Bars.
- 3
Return the next day.
Completion
Rewards and unlocks
- Unlocks Building a Mana Extractor