National Route 368 in Mie Prefecture. There is a tough road section called Nigaki Pass.
The video introduces the section from Taki-gun, Mie Prefecture to Tsu City, Mie Prefecture. The rough road section is relatively short and ideal for beginners.

[Blog post about this video]
https://trip.kabudata-dll.com/r368/

[Touring and transportation information site "EASY TOURING"]
https://trip.kabudata-dll.com/