Shengyin is a school run by students independently. In order to commemorate the founder of Shengyin Academy, the college has always maintained the sacred status of the Saint. The Saint is the highest commander of the college. All matters of the Saint, including teachers, are governed by the Saint. However, the Saint is only a half-year-old child with limited energy, so there are seven people in each generation to assist the Saint. This is also a measure to prevent the Saint from becoming a dictator. These seven people are vividly called "Hongying" by the students.
The seven people in Hongying are responsible for the saints and part of the life of the academy: the red shadow is responsible for the protection of the saints, the orange shadow is responsible for the saints' styling and clothing and the promotion of the academy, the yellow shadow is responsible for personnel allocation, the green shadow is responsible for managing the entire Hongying and communicating with the saints, the green shadow is responsible for data collection, the blue shadow is responsible for finance, and the purple shadow is responsible for scheduling. The detailed division of labor allows the entire academy to operate smoothly, and every transfer of the saint is also accompanied by the transfer of Hongying.