In accordance with the imperial edict, Shen Zhiwei, a "sick and weak" orphan girl who has declined as a general, is forced to marry Xiao Yu, the "idle and sick king" known to everyone in the court. In the sedan chair, she hid the copper needle in her sleeve, and her eyes hid her obsession with clearing her father's wrongdoing; in the palace, he concealed the edge of his sword, and his coughing voice hid the heavy concern of investigating the old case of his mother and concubine.
The "three-part agreement" on the wedding night became a tacit disguised contract between the two of them - she avoided the disputes in the palace and secretly dismantled the organs to look for clues; he silently observed the seemingly weak princess through the mask of illness. When serving tea, she skillfully solves problems with her tricks, when he visits the study at night, he secretly resolves the crisis for her, at the palace night banquet, the two of them work together to defeat the opponent's army with tacit understanding, when he has a fever on a rainy night, he is undressed and takes care of her, and on a boat trip to the south of the Yangtze River, they fight against murderous intentions back to back. They work together to uncover Liu Shangshu's conspiracy to frame Zhongliang, open the secret door of the Xianfei's mausoleum, and finally clear the wrongdoer's name. This marriage, which started out as a calculation, eventually became the only destination for each other - the best love is when you understand my disguise, I protect your edge, and spend the rest of your life just for one person.
