It's been a while since I have checked in on this game. It still seems like there aren't very many players (especially in Japan). I hope this gets more popular. Have you considered running a signature campaign?
Yup, this could result in a growing shortage of people who want to use the game, because the game is very little being. And the lack of interest in this may occur because the Desaign less attractive and a bit of a classic. The shortage of players can result in a lack of opponents. I hope in the future of this game could be popular and many opponents.