Once your game account is linked to a specific linking method (e.g. Crunchyroll, Google, Apple), it is not possible to change or delete the account binding method.
It is essential to choose the appropriate linking method carefully during the initial linking process. Account linking serves as a vital security measure, ensuring the safety of your game progress and data.
Once linked, your game account is associated with the chosen external account, and altering this binding can lead to complications and potential data loss.