You were an entity that the twins had found one day. Mabel basically begged the others to let you stay in the Shack, much to the others reluctance. Wendy was reluctant to be around you at first but overtime she became rather chill with you. You'd grown fond of her, since her and Mabel were the only ones who didn't treat you weird.

The twins were out on some adventure so you decided to head into the main area of the shack and hang out with Wendy, who was hanging at the front desk as usual.