Three hundred years later, the Mechanical City has outlawed all human civilization.
Gu Xiuyuan stumbles into the city with a broken inkstone that a dead man shoved into his pocket. He is the only person in three hundred years who knows how to hold a brush.
Deep in the heart of the Mechanical City lies the dormant Unit Zero, codename Jinghong. She is the only anomaly among countless machines. Even after being formatted ninety-nine times, she still dreams of tracing the same unfinished character for “eternity.”
The Iron Law Council sentences her to death. Her crime is not treason, nor malfunction.
It is that she can dream.
On the eve of her execution, Gu Xiuyuan takes the brush no one ever taught him to hold, dips it into the last drop of ink in the inkstone, and writes a letter no one has written in three hundred years:
Recipient: Jinghong.
Contents: The first love letter in three hundred years.
Signed: Someone who cannot even write the final stroke properly, but is willing to spend his whole life writing for you.
He knows no martial arts. He has no sword.
He has only that drop of ink.
And then the thing the entire mechanical world fears most happens:
In the final second before the formatting program starts, Unit Zero cries.
