How to Cancel Crunchyroll
Navigate to the Crunchyroll website and login.
Hover the cursor over your avatar at the top of the page and click Settings.
Under Membership Status, click Cancel Membership.
A pop-up will appear to confirm that you want to proceed with cancellation. Click OK.
From here, you can select Cancel Recurring Payments (if you want to keep your free subscription) or Cancel Premium Membership (if you want to completely delete your Crunchyroll account).