Wen Shuyan had two faces in his life. During the day, she was the youngest female concubine in Taixue Academy. She had a hairpin in her hand and could read the Four Books and Five Classics in class, which made the prince bow to her. Under the night, she is the master of the "Tingyu Pavilion", the largest intelligence organization in the world, codenamed "Zhu Ying". The secret messages in her hand can determine the life and death of courtiers and stir up the world. Her most proud student is the handsome and scheming sixth prince Xiao Jingci. She taught him carefully, helped him hide his edge, and regarded him as her most perfect work. Until that day, the young man lost his coldness and arrogance, blushed in front of her, and confessed in a low voice: "Sir, I love you." For the first time, Wen Shuyan's heart, which had been calm for more than 20 years, began to ripple. However, she didn't wait for Yi Ni's last words, but she waited for the fury of thunder. In the Jinluan Palace, a secret letter of collaborating with the enemy was presented to the emperor, and every word was heartbreaking. The handwriting at the signature is exactly the same as her hairpin in small regular script. Overnight, she went from being the emperor's master to being a prisoner. Xiao Jingci stood outside the prison with sad eyes and asked her through the cold fence: "Master, do you know your guilt?" Wen Shuyan looked at the love and suspicion struggling in his eyes and smiled. Convicted? Her only sin may be that she misjudged people's hearts. Well, since they dragged her into the quagmire with their own hands, don't blame her... They lifted the chessboard so that all the ghosts hiding in the dark had nowhere to hide. Xiao Jingci, in this last lesson, I will teach you - what is the real strategy.