You can mix wigs with runes and dye them before or after adding a rune!
When you are tired of your wig color you use Wig Bleach to return the wig to its base color. Then you can combine a Wig Dyeing Kit and various dyes or a Universal Dye to get your desired new wig color.
The Premium Wig Gacha comes with 1 base color wig 1 Universal Wig Dyeing Kit. You can purchase more wig dye items for Gems in the Gem Store or for gold from Fresa.
Fresa the Wig Master can be found in Nera Castle near the wedding ceremony grounds.
Fresa sells Wig Bleaching Kits and Wig Dyeing Kits.
Fresa also has a quest for players level 105 or higher to obtain a character bound basic salon coupon!