Becoming a Guardian Ep. 2 is the second quest given by Guardian Master.
Note - this is the second quest in the chain to unlock the Guardian class.
Before: Now I'll give you a serious task. A long time ago, the Empire sent me to the depths of the ocean to fight huge beasts. We were outnumbered, and while escaping, I lost my talisman. You must go and find it…
During: Have you found my talisman?
Find the Guardian's Master Talisman in the Dark Ocean.