This is the sixth season of the series, which was created to commemorate the 50th anniversary of the first anime adaptation. It is set in the modern era, nearly 20 years after the start of the 21st century, when the existence of yokai has been forgotten. In the city, mysterious events occur that cannot be explained by science, and a 13-year-old girl named Mana writes a letter to the Yokai Post, half in disbelief. Then, Kitaro arrives. After hearing her story, Kitaro is convinced that a yokai is involved, and he sets out to solve the problems caused by the yokai that have appeared in the human world.