Ryuuou no Oshigoto! is a Japanese light novel series written by Shirou Shiratori and illustrated by Shirabi. It follows the story of a 16-year-old shogi prodigy named Yaichi Kuzuryuu, who holds the title of 'Ryuuou', meaning 'Dragon King'. His life takes an unexpected turn when a nine-year-old girl named Ai Hinatsuru shows up at his doorstep, demanding to become his disciple. The anime adaptation explores their journey in the competitive world of shogi, blending comedy, drama, and intense matches.