On the banks of the Bian River during the Chongning period, Su Yanqing, a young man from a poor family, clutched half a square of residual inkstone, and used ten years of hard work to fight against the power accumulated by three generations of the Liu family - Liu Chengsi joined the Imperial College by shackles, cheated to get an official position, and ridiculed him for being "difficult to pass the exam";
From the embarrassment of practicing calligraphy on the ice to the secret fight of fraud in the examination room; from the hardships of water control in Muzhou to the iron bones of supervising the censor, Su Yanqing used pen and ink as a blade to record the suffering of the people and impeach the powerful and corrupt. He survived the desperate situation of his father's death and withstood the pressure of the Liu family's forces, and finally implemented the new policy of "recruiting talent in the examination and banning fraud in the imperial examination", and made the meaning of the "ten years of cold window" transcend family background - not to compete for superiority, but to open a way for poor families and uphold justice for the people.
The Bian River is full of water, and the fragrance of ink on the inkstone has not dissipated. Su Yanqing has spent his life proving that if three generations of people work for personal gain, they will eventually be abandoned by the people; if they stick to their original aspirations after ten years of hard work, they will be able to write down their character in the annals of history.