Survivor Candy & Cola is based on Soda Pop Miniature's Candy & Cola and she appears in both of their two games. (Super Dungeon Explore and Relic Knights).
She was only available through the Kickstarter and in the future will be available in a limited fashion for various promotions. She was suppose to come with:
A KD:M one shot challenge scenario
Promo soda bottle lantern gear card
Promo rules for use with Soda Pop Miniatures Relic Knights game
Candy & Cola were shipped in Wave 1 of Kickstarter fulfillment, but the game content mentioned in the campaign was not included. Game creator Adam Poots mentioned that the content would be printed and released on their website eventually. For now, it is available in PDF format on the Kingdom Death website.