Recently, I had a chance to visit Japan briefly. During the stay, I took very very short time off to visit Convoy , one of the Japanese rainbow shops, which sells new goods and used goods. Below are the books I found. I can't say that I bought them at very cheap price. At Amazon market place, they sell these books at extremely low price. But they usually don't ship used goods to other countries. I am not sure if Japanese seller are not familiar with selling goods overseas or they are just reluctant because they think that they have to use English when to sell things overseas. Not like sellers in Japan, there are many sellers who are willing to ship things overseas. For example I have bought several times from the sellers of Amazon UK or Amazon US. Anyway, it's not easy for me to buy these used goods from Japanese sellers. They usually don't ship items overseas. I am not sure if proxy shipping service companies would dispatch these gay-related items , ...