Su Wantang, the concubine of Dingbei Hou Mansion in the Great Chu Dynasty, was tricked by her aunt Wang in her previous life to marry the dying Prince Qing due to her frailty, and she eventually starved to death in Leng Yuan. Reborn on the first day of spring at the age of fifteen, he returns with his remnant soul. He uses illness as armor and poison as blade. With the help of the golden finger of the four-dimensional linkage of "solar terms-disease-emotion-memory" in "Qing Sang Can Canon", he launches a precise revenge. As the solar terms change, illness attacks and mood swings intertwine, she gradually uncovers the conspiracy of the house fight, awakens the female alliance "Tang Ying Thirteen", and finally transcends her obsession with revenge, completing her awakening transformation from "a prisoner of fate" to a "rewriter of fate". The truth behind the scenes emerged: King Qing was also a reborn person, and he had planned for ten years just to promote her awakening. The collision of their ideas led to the ultimate speculation about free will and fateful reincarnation.
