Seeing the Emperor's face loosen a bit, Liuliu suddenly thought of the calculations and the multiplication table. She decided to present it all at once, hoping to obtain a decree that her gender disguise was not considered deceiving the Emperor, but instead was an honor to serve in the military.
"Your Majesty, when I learned calculation with my husband, I summarized a mnemonics set making it easier to learn. A few years ago, I bought a book called "Calculation of Yan Country" which cost quite a sum, but it didn't have mnemonics. If our Tian Dynasty sells calculation books with mnemonics, I believe Yan Country's version would lose its market," Liuliu argued, believing that bribes always worked.