The Demon Knight Just Wants to Teach Slimes How to Read

Travel to the world of swords and magic. Vito found himself given a system mission. [Current task: teach slime how to read] [Mission Reward: Mount Summoning Technique (Nightmare)] Wait, the mighty Demon Knight doesn't refine skeletons but deals with the weakest slimes all day long? This is so reasonable! Help Vito obtain the Nightmare by teaching the slime how to read. Teach slimes how to read and help Vito obtain the mysterious magic of the Forbidden Book Tower. Teaching slimes how to read helps Vito gain favor with beautiful girls of all races. Faced with such a gain, teaching slime how to read is the most reasonable thing in the world! ... As the first demon knight in the history of the Church of the Morning God and an honorary guardian of the empire, Vito wiped the sweat from his forehead and devoted himself to the great cause of teaching slimes to read and write, forgetting sleep and food.