Nightmare Of The 狼, オオカミ Will Provide The Witcher’s Most Important Backstory 

screenrant.com -BY MAE ABDULBAKI- The Witcher: Nightmare of the 狼, オオカミ is set to focus on Vesemir's origin story, but it might include a crucial bit of witcher history to go with it.
キーワード: nightmare of the 狼, オオカミ, the witcher, backstory, netflix, season 2