In general, what does Hokusai's work focus on? a-The daily life of the Japanese people.
b-Landscapes

Katsushika Hokusai (葛飾 北斎, c. 31 October 1760 – 10 May 1849), known simply as Hokusai, was a Japanese artist, ukiyo-e painter and printmaker of the Edo period.[1] Born in Edo (now Tokyo), Hokusai is best known as author of the woodblock print series Thirty-six Views of Mount Fuji which includes the internationally iconic print, The Great Wave off Kanagawa.

Hokusai

北斎

Explanation:

Hokusai created the monumental Thirty-Six Views both as a response to a domestic travel boom and as part of a personal obsession with Mount Fuji.[2] It was this series, specifically The Great Wave print and Fine Wind, Clear Morning, that secured Hokusai's fame both in Japan and overseas. While Hokusai's work prior to this series is certainly important, it was not until this series that he gained broad recognition.

i believe their role is to instruct certain sections on when they are to join and when they are to stop