My husband has a close friend from Basque.
We discussed more than one time which one is more difficult to learn, Basque or Japanese? The result is still inconclusive.
I will give you this story.
The devil was condemned by God. He was forced to learn Basque for many years. When he filially pardoned by God after learning Basque, the devil forgot everything after he cross the bridge between Basque and the rest of the world.
Joke aside, I think the most difficult part of Japanese language is its complex writing system.


We are stronger than Zorin team ( just joking 
. I know the feeling sadly...