1. Open the Aauto Quicker application and enter the personal homepage.

2. Click the "Settings" icon in the upper right corner to enter the settings page.

3. On the Settings page, find the "Account and Security" option and enter the Account and Security page.

4. On the Account and Security page, find the Nickname option, and then click Enter.

5. On the nickname page, you can see "What Army" in front of the nickname, and click the "Modify Nickname" button.

6. In the modified nickname page that pops up, enter a new nickname to set, and click Finish.

7. Click "Save" to save the modified nickname settings. Through the above steps, you can successfully remove the "what army" in front of the nickname of Aauto Quicker. It should be noted that after modifying the nickname, your nickname will no longer carry "what army", and other users need to manually enter the nickname when searching for your account to find your account.