Shu Yao was once the most dazzling calligraphy genius. When she was eighteen, a heavy rain destroyed her entries and her self-confidence. She stopped writing for ten years, hid in the mountains of Shexian County, and became an unpopular "rice paper half-cooked ink adjustment designer" - to put it bluntly, she is a weirdo who specializes in testing the humidity of paper, the ratio of glue to alum, and the spread of ink.
Gu Yanzhi was her confidant in calligraphy when she was young, and now she is a calligrapher who pursues the ultimate control of ink. He wanted to customize a batch of top-quality rice paper that would not smear or faint, but he did not know that the woman wearing a mask in the workshop was the one who was known as "the best in pen and ink" with him back then.
What she wants is the natural and freehand beauty of ink, and what he wants is the practicality of writing as clear as a knife. A piece of paper, a war between two people. She deliberately spoiled his paper, and he deliberately spoiled her formula. In a tit-for-tat confrontation, who will recognize the other's handwriting first? What secrets were hidden in that heavy rain ten years ago?
Paper will smear, and so will people's hearts. When the half-baked touch was finally just right, they realized that the best paper can tolerate accidents; the best love can accept loss of control.