Heroine: Lin Wanci (18 years old before rebirth/15 years old after rebirth)
· Previous life: The concubine of the Shangshu Mansion was designed by her aunt and sister to marry the paralyzed prince. She became a political victim under the "care" of the princess's sister. She didn't know until she died that her biological mother had been poisoned.
· After rebirth: On the surface, she appears to be a gentle and cowardly concubine, but in reality she is an avenger who is proficient in poison and has every plan. He is good at using tea ceremony and spices as weapons to create layouts in silent places.
Male protagonist: Xiao Zhi (the prince of Zhenbei, apparently 22 years old)
· The bright side: The disabled prince was paralyzed due to war injuries and had a violent temper. He was marginalized by the royal family.
· The dark side: The person who controls the layout of the "Black Crow Guard", a secret line in the north, pretends to be sick and lies dormant, plotting against the world. After the heroine saw through the disguise, they went from testing to forming an alliance, and finally became each other's only trust.
