Japanese Copyright law has no provision for fair-use. That means that it's illegal in Japan to excerpt copyrighted works, even if for discussion or criticism, without the rights-holder's permission. A group of Japanese fan artists have created a campaign to educate foreigners about this unusual law, and to get non-Japanese to remove fan art that has been posted without permission, regardless of the circumstances. I understand that there are cultural differences at play here, but it seems to me that putting rightsholders in charge of the discussions of their works is a bad idea — I don't understand how fair and honest criticism can function without the ability to excerpt without permission.
Many foreigners think that they are not "stealing" because of the credit, but the Japanese authors, WE prohibit reusing without permission, so that will be same as stealing TO US. So if you want to use Japanese fanarts, why don't you just follow Japanese's rules?
