Japanese ancient bookstores are much cheaper than ordinary new books. But a copy also costs 2 or 300 yen. So you'd better check it online, for example, some shops in "ォークション" deal in used books. Do you want to sell used books in China? That's a good idea. With the appreciation and fascination of some teenagers in China for Japanese comics, I think if you open a shop selling real Japanese comics in China, it will be successful. ...