Yunyi dropped out of school for some reasons in her senior year of high school, and returned to school a year later and entered a new class. It is difficult for Yunyi to adapt to the unfamiliar environment and classmates.
Because she had surgery not long ago, Yunyi would stay alone in the classroom during physical education class.
Until one day, another voice suddenly came from the originally silent classroom. Yunyi looked back and saw that it was a boy she didn't recognize. The boy was obviously not wearing the school uniform, but he was very familiar with the school. Yunyi regarded him as a being similar to an earthbound spirit, and gradually became familiar with him.
The earth-bound spirit was very warm and gentle, which gradually gave Yunyi's lonely heart a different color, and also allowed Yunyi to step out of her self-enclosed space.
All this stopped until Yunyi discovered the identity of the Earthbound Spirit.
Motto: Don't be afraid of uncertain possibilities