Ah, I have bad new for you.
Gowen Academy more or less died, the leader was absent without notice for too long (and other members also disappeared without a word). Consequently, many GA members left the guild, and others are just still absent, so the guild is not active nor recruiting.
I suggest you take a look at the other guild if you really want to join one, but you can also gather experience alone and join a guild later when you know more on the game and the guilds (by discussing with members through chat or during battles).
I decided to stop Alteil because it is no longer fun thanks to set 10 and what some people became; I gave my account so if you meet me it's not me.