A girl mistakenly wanders into a fantasy forest where it never rains. There are water squirrels in work clothes, cat dragons that eat exhaust gas, and umbrella trees that purify garbage... She is accidentally mistaken for the goddess of the seasons and is forced to stay in the forest, where she meets Lu Di, the leader of the Umbrella Forest. Unexpectedly, she discovered Ludi's inner troubles. The long-term loneliness caused Ludi to lose the power of the forest, leaving the forest without a leader and the residents' lives losing direction. At this time, the Umbrella Forest is facing human invasion. In order to protect the forest and save Ludi, Joyce decided to solve Ludi's troubles and help him become the guardian of the forest again.