Three-and-a-half-year-old soft and cute group-loved Su Tuantuan first enters the Xuanyun Sect school, unexpectedly obtaining a glowing spirit stone, and the small bell she was born with at her waist also experiences successive anomalies. She, Gu Xiaoman, Lin Xiaohu, and Bai Yuyao form a brat pack, getting acquainted with a mysterious little spirit beast. Following the clues of the bell to explore secrets, everyone unlocks the mystery of the sect's spiritual vein lying dormant for ten years. Tuantuan collects all the bell fragments, rings the ancient bell to awaken the spiritual vein, and deep in the sea of clouds, a mysterious and ancient mountain gate emerges.