Ok, I have seen many of you are having troubles entering into the game, here is the OpenVpn I use.
install this app and it's plugins
After you install these 2 apps, open the EasyVpn
Select one of the japanese server you like
And then you import it into the OpenVpn you just downloaded
after imported, you can just open and close the vpn anytimes you like.
it is absolutely free, fast speed, unlimited quota, if you have any questions just post below and I will try to answer when I am free