- The Normal key should be combined with the Normal Box to open the box.
(Normal box is provided by default , and normal keys are available for purchase
- The Rare Key can be combined with the Rare Box to open the box.
- Rare Boxes can be obtained via Normal Box Reward.
- If you open the Box, you can obtain Mileage.
(Normal Box: 1 Mileage/ Rare Box: 2 Mileage)
- Earned Mileage can be exchanged for the desired item at the exchange store.
(Mileage can be obtained as a box reward.)