Why do my Onigiri Online cant play the game?

[FonFonChoi]

CBT begins June 5th 13:00 / 1pm (PDT)
PDT is the timezone the game is at.

so, in situation like this, where you are in different time zone, i suggest you to use this

http://www.worldtimebuddy.com/

in there you can use to see what time the game will be open at your timezone.
I used it all the time when i was in Aura Kingdom because I'm from Gmt+8 zone and i used it to track down eidolon and bosses spawn time.

[Hakase Hakase]

Is Onigiri still slippery in a way? Hopefully Dragon Kid isn't Gacha like in the JP version.