How to convert a magic crystal into a magic stone?

How to convert the magic crystal into magic stone: 1 Open the mobile APP and click the "member purchase" option in the navigation bar below to enter. 2. Then enter "magic reward" in the search bar, and you can see the goods that support shopping with magic crystals. 3. Click to enter the list of product details, and you can directly deduct the use of cash by consuming magic crystals.