Sansoku ("Mountain Gang") is a famous deep fried chicken restaurant in the mountains near Iwakuni City in Yamaguchi Prefecture that has developed into a restaurant chain. This is the Sanzoku branch in a supermarket in North Yamaguchi City, and a table at which you can eat the produce you purchase from the supermarket itself.

It is about 50 meters from the Firefly Spa mentioned in the previous video
Google maps
https://maps.app.goo.gl/42QUQBau1uS1J...

Tourism Map
https://tiny.cc/timtak