Everyone in the capital knows that Miss Su from "Weiyun Embroidery Studio" has superb embroidery skills. The white plum blossoms are covered with frost under the needle, and the branches are weeping with dew. However, no one knows that hidden in those fine stitches is the code of blood and tears for the daughter of the guilty minister to overturn the case for her father. Embroidery needles were her livelihood, and the short knife in her sleeve was her bottom line to protect herself and others. She had endured for five years just to wait for a chance to shine.
Until that day, when the rain hit the bluestone, Prince Jing Xiao Che, who was used to being idle, came out in the rain and broke into her small world on the pretext of customizing a dragon-patterned purse. There was inquiry hidden in his eyes, and with one word he revealed the strangeness of the dark patterns on the plum branches, so shocked that the silver thread on her fingertips almost broke. She was wary of his approach, but when Prime Minister Li's son provoked her, she encountered his careless defense; she suspected that he had ulterior motives, but when the embroidery workshop was burned down and the environment was dangerous, she relied on him to rescue her "just by chance".
The two of them each have secrets, and form an alliance in the undercurrent of the court: she uses embroidery to pass secret messages to help him detect traitors; he uses secret power to find clues and protect her. But when the "Xiu Anti-Poetry" scandal suddenly came and she was imprisoned, she was shocked to realize that this idle prince was actually the commander of the secret guard that the emperor relied on - his initial approach was originally a test with a purpose.
Trust is broken and love is hard to break. When the irrefutable evidence was in hand but she was ambushed, she finally pulled out the dagger in her sleeve and was no longer the embroiderer hiding the edge; he took off his disguise and protected her forward with his flesh and blood body. The light of the sword reflects the embroidery thread, and the conspiracy entwines the sincerity. This encounter, which began with exploitation, will eventually embroider a period of perfection in which "the sword returns to its sheath, and the fragrance fills the clothes" in the court situation and the test of life and death.