An An, an eight-and-a-half-year-old girl, is compared to her younger brother by her mother because she loves sweets but doesn't like brushing her teeth.
An An felt that her mother was biased and cried herself to sleep. When she opened her eyes, she no longer saw the familiar butterfly ceiling, but a world built with candy.
There, An An met a group of good friends such as Nai Tu, and they worked together to uncover the strange cases of missing teeth in various villages. When everyone thought that the culprit behind the scenes was a witch in the dark forest, things took a shocking turn.
Purpose: healthy teeth, delicious food.