I spent 2 weeks biking around rural Japan, away from touristy areas, and it was fantastic, to say the least.
Easy access to Japanese food, small town Japanese aesthetics, and unique landscapes are what made it worth it.
Not to mention that even if you want to go to some of the more popular areas of Japan, it's rather easy to get to them from the rural areas with the excellent public transit infrastructure they have, so if you have a job that you can work remotely, and you like the rural daily lifestyle but occasional urban fun and weekend trips to the city, Japan is just about as ideal as a place as you can get to have that lifestyle.