Delete series data?

[ClarkNYC]

This title is not part of a series? While a few characters are mentioned in passing from an earlier book, The Tattooist of Auschwitz, the book is a stand alone and does not need to be read as part of a series. But I was not able to remove the title from the series. Can anyone help with this?

Thanks,

Clark

[Emily]

If there are shared characters, it can be considered part of a series. For Goodreads, a series does not have to be books that you read in an order, it can just be books set in the same universe.