Saka-no ue-no kumo, "Cloud (or Clouds) over the slope," is a popular Japanese historical novel by Shiba Ryotaro originally published serially from 1968 to 1972 in eight volumes. A three year NHK television special drama series based on the novel and also entitled Saka-no ue-no kumo is being shown in thirteen episodes from 2009 to 2011.
The novel is set in the Meiji-era and focuses on three characters from the city of Matsuyama, Akiyama Yoshifuru, his brother Akiyama Saneyuki, and their friend, Masaoka Tsunenori, better known as Masaoka Shiki. The novel follows their lives from childhood through the Sino-Japanese War, culminating in the Russo-Japanese War of 1904-5. The city of Matsuyama has a Saka-no ue-no kumo Museum dedicated to the novel and associated TV series.