I don't like to bash people when they try to do something special, but the one year anniversary is really a letdown.
Basically items drop from monsters which you can turn in for prizes. Except the prizes sort of stink. A rat hat, a pouch that increases experience for 10 or 20 minutes, and pajama costumes (that cost 25 mysterious powder as well).
Rubiana's Blessing Event
5 days ago