Kersti

"As their caretaker, it's my duty to find all of them, or else I can't return to the Sticker Star!"

- Kersti

Kersti is a sticker fairy who appears in Paper Mario: Sticker Star. She will be Mario's initial companion in the game. Kersti's name is an anagram of the word "sticker" but with the letter C removed. Kersti will have the ability to "paperize" stickers by pressing, turning the stickers into objects that can be placed into designated locations.

In the end, she sacrifices herself when she lets Mario use her as a sticker during the final boss fight (killing her in the process), but the wishes of Mario brought her back to life, shortly after, she scolds Bowser for trying to steal the Sticker Comet again. She jokes she might want to change her career, and Mario, Peach, and Bowser laugh.

Kersti is shown to be very benevolent, but also has a feisty side to her as shown in many cutscenes. She has an aggressive rivalry to Kamek.

She also slightly resembles a Pixl from Super Paper Mario.