Goblin Slayer Side Story II: Dai Katana, Vol. 1 (light novel): The Singing Death (Goblin Slayer Side Story II: Dai Katana (light novel), 1): Kagyu, Kumo, lack: 9781975318239: Amazon.com: Books
If you don't read the LN, I would recommend you not to read "Goblin Slayer - Day in the Life" that adapt from Vol.12 because it contain spoiler for LN's Vol.07 -
Goblin Slayer, Vol. 14 (light novel) eBook by Kumo Kagyu - EPUB Book | Rakuten Kobo United States