Therefore Zynga Japan develops a social game for Japanese markets originally. They released new game apps for Android recently. The name is "Ayakashi Onmyouroku(あやかし陰陽録)"
Zynga's Japanese taste iOS game application
However, I think this is so-so. Card battle social games are full of Japan now. Latest Zynga Japan's card battle social games are good. But there is not the novelty. Now, card battle social games are full of Japan. Everybody collects digital cards :) but the Japanese will get tired of it someday. What will come next to Card battle social games? I think the issue of the next social game of Japan to be this.