When pressing Yes on Party Finder and it comes out Japanese..

http://i.imgur.com/CrRK7PG.jpg

ello please check this.. :3

I've been having the same issue (on EU server, since I'm assuming OP is on a JP server)

http://i.imgur.com/zkjX4hb.jpg

That is most definitely not working as intended, but it will be following an update! Thanks for bringing it to our attention.