Facts
GM Mikki said:
"One user per server and realm. Which means 10 users will be rewarded per month!
(Bigmama - Lanos / Siras + Wadangka - Lanos / Siras + Devilang - Lanos / Siras + TurtleZ - Lanos / Siras + Caligo - Lanos / Siras)
It's a continuous event, so don't worry if you don't get it the first time. You'll still have numerous chances!"
The event is currently closed. It's unknown if it will be brought back.