According to the Heike Monogatari, the enemy Taira placed a fan atop a pole on one of their ships, daring the Minamoto warriors to shoot it off.

[1][2] After the Genpei War, he was made shugo of Tottori Castle, but he lost this position to Kajiwara Kagetoki after being defeated in a hunting competition.

There is another legend that his death in 1189 (or 1190) was disguised to facilitate his escape from Yoritomo's purge, and that the reason for his becoming a priest was that his complexion had changed due to Hansen's disease.

In the Battle of Yashima, he famously shot down the target of a fan on the Taira clan's warship, and was granted a shoen (manor in medieval Japan) over five provinces by Yoritomo.

Yoichi pardoned his older brothers who had escaped to various places such as Shinano, gave them territory, and laid the foundation for the development of the Nasu clan in Shimotsuke Province.

There is a local legend that states he was good at archery since he was a child, and showed his skill in front of his brothers and surprised his father Suketaka.

In front of Kokuzo Bosatsu-do Hall located to the northwest of Saren-ji Temple in 5-chome, Yonezawa City, Yamagata Prefecture, there is a three-storied stone pagoda approximately 4.2 meters in height with the name of Nasu no Yoichi inscribed.

Also, there is a five-ring memorial tower for Yoichi in the mountains of Bicchu Ebara-so, one of the manors he acquired across the country for the merit of shooting at a fan target.

29th generation Nasu Yoichi Shokutoku, right side, Buddhist priest, Jukko Tokun Dai-i-sensei, Hoikein-dono, graduated on June 8, 1718.

The story of Nasu shooting the fan off of the rocking boat was briefly re-enacted in the Studio Ghibli film, Pom Poko, when old Yashima no Hage-tanuki shapeshifts into it.

In High School Inari Tamamo-chan manga, the story was twisted; Nasu no Yoichi was Tenko Fushimi, as her bow skills were legendary, but the fact that she was a fox guardian was concealed.