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A coupon that impoves the quality of an item by 1 Stars.
This limited item can only be used on items 4 Stars and lower. | ||||||
 This item cannot be traded.
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Details[ | ]
- Once you start usint it, its 30-days expire limit will be applied.
- Cannot use after it expires.
How to obtain[ | ]
You can get Quality Booster Coupon (+1 Star) at Exchange Shop for Tour of Duty Welcome Event Ticket 100x
At Exchange Shop for Daily Mission Ticket x80