The Great Cleric: Volume 6 (Light Novel) by Broccoli Lion

His trials and tribulations in Yenice behind him at last, Luciel makes for his next destination: Rockford, followed by the Kingdom of Dwarves. While the Republic of Saint Shurule creaks under the weight of a new wave of human supremacy, the hapless healer’s hopes for an easy mission are short-lived as the journey develops into something far more complicated than he signed up for...again. Something crawls beneath the earth, threatening to topple a precarious monarchy, and there’s more to the magical streets of the artisan’s haven than meets the eye.

Will the Masochist Healer ever catch a break? Unfortunately, it doesn’t seem likely. And the more information that comes to light about his fate, the grimmer Luciel’s future becomes.