Fūrin Kazan (風林火山) is the 46th NHK Taiga drama television series that began on January 7, 2007.
[1] The story, to a large extent, was an adaptation of Yasushi Inoue's 1959 historical novel of the same title (published in English under the title The Samurai Banner of Furin Kazan[2]).
The four characters of the title, from left to right are wind, woods, fire, and mountain.
It means "Swift as the Wind, Silent as a Forest, Fierce as Fire and Immovable as a Mountain."
Set in the Sengoku period, it depicts the life of Yamamoto Kansuke who is known as one of Takeda Shingen's renowned strategists, as well as life of Takeda Shingen and Uesugi Kenshin among others.