1. Open the game: start the game "War of Peace" and log in to the game account.

2. Enter the mall: In the game, find the mall entrance or related interface. The mall will provide all kinds of skin for purchase.

3. Browse Skin: In the mall, browse the list of available skins. You can choose the skin you are interested in according to your personal preference.

4. Buy skin: After selecting the skin you want, check its price and confirm the purchase. You need to use virtual currency or real currency to make purchases in the game, depending on the game settings.

5. Wear skin: Once the skin is successfully purchased, when entering the game, find the "skin" option in the character selection interface or the setting interface. Click to enter this option, and then select the skin you bought to wear. Therefore, you can follow the above steps to fight skin penetration in Pingjing.