You can unlink the admin panel from both the admin panel and the app.
*Please note that once you unlink the admin panel, the user's history will no longer be reflected in the admin panel, and data that you were previously able to view will no longer be accessible.

[To unlink from the admin screen]
You can unlink from the admin screen by going to [List of Linked Users] > [User Details Page] and selecting "Unlink".

[To unlink from the app]
You can unlink the admin screen by going to [My Page] > [Admin Screen Linkage] and tapping the "×" to the right of the linkage you want to unlink.