Three Vacancies are used to upgrade Mastery Earring. To make it, put a couple of Excellent Pendant or Ring to Chaos Goblin machine:
More information:
Following this Video:
Accessory Material (up to 16 couples) | Quantity of Three Vacancies |
Any Excellent Pendant x2 | 3 |
Any Excellent Ring x2 | 2 |
Following this Video: