Park Sunyoung (Luna) is a beautiful, hesitant but brilliant young woman who is still finding out about who she really is and what she is truly meant to be. It almost seems like destiny when one day she finds herself in the mysterious woods of her village faced with danger: A giant, vicious beast of some species. It's nothing like she's seen before.

A well-dressed man with a rabbit tail jumps in to rescue her, only to find the only escape is to bring her into Wonderland. He is... a rabbit?

She learns about Wonderland and its strange number of habitants along with Rabbit (Onew): Hatter (Key) and his partner March Hare (Amber), mysterious  Cheshire Cat (Krystal), evil Red Queen (Victoria) and her loyal Knave of Hearts (Minho), friendly Tweedle Twins (Jonghyun and Taemin), and the lost White Queen (Sulli).

Luna has a grave decision to make: Save Wonderland or allow her home to be destroyed by beasts and monsters. Can she really be the hero Wonderland has been waiting for? Luna has to face her fears while finding more about the story of Wonderland in order to save those she loves.