Pokemon White - Battle Subway & Random Match (Wi-Fi)

Hey all!Ive been looking, searching and trying, but I couldnt figure it out...
Its about the Battle Subway. A mode there is called: "Multi Battles".. Its the orange line...
You can battle with a NPC there, but HOW do I get that NPC there? And which Japanese things do I have to select in order to do this??Another question about the "Random Match" on Wi-Fi, where you can battle against every1 from the world WITHOUT Friend Code and stuff...
I believe this is the upper right woman you have to talk to, right?
But, what then??? I tried everything! When I click first option, first option... I get a list of Japanese shit I dont get a f**k of :\
So, can anyone tell me which I have to select to do Random Match battles...
Oh, at some of those options, only thing I could read was things like: 4~6 ....
Huh? :OThanks for helping!

I dunno about the battle subway, but you need to register with pokemon global link in order to do random matches. But you need to wait a while cause the website and services are down.