The Lady Butterfly Hunt (April 8 - May 8) at Adoness.
You need to find 8 objects (blue glowing butterfly pendants) to complete this beautiful outfit. Each hunt prize is 1 linden, which means you get this amazing outfit with hair, eyes, nails and shoes for just 8 lindens!
Do not forget to join the group and get the group gift. I really love the group gift that is available at the moment. Also, visit the discount section of the shop (there are four sets of hair available for just 10 linden each), slap the Midnight Mania board and try your luck on the gatcha machines. Good luck!