The tertiary institution's Campus Work Committee had equipped every classroom in the main academic building with a group of pixies who double as janitors during breaks between classes.
Due to differences in classroom sizes, the number of pixies varied. Smaller classrooms generally had three to five pixies, while larger lecture halls were assigned more than ten.
The East 601 of the main educational building, located in the most light-filled area of the sixth floor, was of moderate size. However, at this moment along the wooden frame of the blackboard, about twenty pixies were perched in a row.
Only about seven to eight of these pixies were dressed in the gray uniforms of the campus work committee; the rest were in their usual green gossamer robes.
These casually clothed pixies were brought by Zheng Qing.
