Apologies if it's been answered I'm lvl 22 lancer and the The Order of the Twin Adders says "...I haven't completed enough of the story to join". So, how do I join, because, I have no class missions nor side quest?

The only thing I can think of...I haven't picked job and haven't completed the 16 leves? Other than that lancer guild says comeback at lvl25 and I still have my hunting log lvl 3 to complete. Thank you