Under Princess An Yang, each of the four young women has her own expertise. Huang Su excels in delicate brushwork, she never forgets once she sees, capable of painting both skin and bone. Whoever enters the city undercover, regardless of their status, has their face and figure painted onto paper, and kept in the archives for reference.
A few days ago, several undercover agents were successively led out of their narrow chambers and sent to Huang Su's painting pavilion to have their likenesses painted and filed. As Huang Su was grinding ink and laying out paper, she was initially uninterested, but suddenly she was taken aback, her mind faltering for a moment.
