The Hidden Institute by Brand Gamblin

Rising above your station can be deadly. Cliffy is a child born on the streets of a Neo-Victorian world. Witnesses to a murder, he blackmails a nobleman, receiving a unique bribe. In exchange for his silence, the nobleman introduces him to the Malcolm Rutherford Holden Institute of Regentrification. There, Cliffy learns to walk, talk, and act like a nobleman, so that he may infiltrate high society. But that type of fraud is punishable by death, and when Cliffy uncovers a plot to assassinate a head of state, he's hunted by more than just the aristocracy. Royal intrigue, daring escapes, sub-dermal machines, and bear polo. A grand adventure in a not-so-distant world.