Who? The same one that's a top 10 shareholder in 40% of all the Tokyo Exchange-listed companies: the Bank of Japan. Do you think they got to a 270% GDP debt with retail holders only?
Discussion
Sure but if they just rely on the central bank to print cash to buy that debt it will make their inflation even worse. They seem to be far along the path to Weimar if they do that. Much farther than the US is even.