It’s premium versions of volumes “How a Realist Hero Rebuilt the Kingdom”. Each volume contain 5-8 bonus stories at the end of books. Volumes 1-10 of novel: https://nyaa.si/view/1220224 https://nyaa.si/view/1211652 Volume 11 of novel was not laid on nyaa.si previously as a separate release. Only with **Officially Translated Light Novels** series of releases. But the books, included in **Officially Translated Light Novels** series of releases, cannot be found through the search bar - since they are located in subfolders. Therefore, **How a Realist Hero Rebuilt the Kingdom** was posted separately.