Isekai'd to save humanity

{record of ragnarok male various x isekai'd as adult göll!reader}

A young woman by the name of (Y/n) soon finds herself in a world she had previously known as fiction, specifically in the past than present of the world. The world she transported to is a little different though... she now bears the role of the oldest Valkyrie of that world, but it's not brunhilde that she reincarnates as..... it's göll.... How will she fair in this alternate universe of the fictional work of her world? Will she survive? Find a way out? Or maybe..... find love?

(A/n: I thought this would be an interesting idea and had to make a book about it, especially when switching the roles of brunhilde and göll for it! This idea was created with the help of @northwind132! Anyway, that's it! Hope yall enjoy!!