Watch The Ryuo’s Work is Never Done! full episodes online enghlish sub
Other titler: Ryuuou no Oshigoto!
Synopsis: The story is about a teenage boy who happens to be a shougi master. One day, a nine-year-old girl turns up at his house, requesting to be taken as his disciple. From there, all kinds of wacky hijinks ensue.
More info: Myanimelist, wikipedia