Even Given the Worthless ""Appraiser"" Class, I'm Actually the Strongest Vol. 9 (Kodansha, 2023)

Ein and the gang have come to Kai Pagoss, the kingdom of ice and snow, in search for another one of the spirit sisters. But when they arrive, they encounter a man calling himself “Ein Rayshik”...and who's enslaving the dwarf population?! To make matters worse, the dwarves and their spirit protector have been forced to endure harsh conditions under the demons who have come to exploit the power of Demon God Torr, who's sealed away in the nearby World Tree Hall. Can Ein free the dwarves and stop the resurrection of Demon God Torr??