The Slave of the Black Knights

Synopsis

In a world where knights wield immense power, the protagonist endures harsh treatment as a slave within a notorious order. His fortunes change when a young guildmaster, recognizing his potential, offers him a way out. Enticed by a generous advance, he joins her guild, only to discover that he's been granted an S-rank adventurer title. This marks the beginning of his journey from oppression to prominence, as he navigates the challenges of his newfound status and the responsibilities that come with it.