- The heroine: Shen Weiwan was originally the legitimate daughter of a scholarly family. Her father was framed and the family fell into ruin. In order to protect her family, she was forced to marry into the Marquis of Jing'an Mansion as a stepmother. She looks gentle and quiet on the outside, but in fact she is thoughtful and resilient. She understands medical skills (heredited in her family) and is good at mixing incense. She is cautious in the early stages, but gradually shows her sharpness in the later stages. She can protect herself and love her husband.
- Male protagonist: Xiao Jue, the Marquis of Jing'an, a young general who holds military power. He looks cold and taciturn, but in fact he is careful and caring. Due to the early death of his first wife (hidden suspicion) and the urging of his grandmother to get married, he married the "peaceful" Shen Weiwan. At first, he just wanted to add a "well-behaved person" to the Hou family. However, he was attracted by her intelligence, warmth and "not easy to mess with" contrast, and started the "wife-protecting madman" mode, doting on her as a treasure both internally and externally.
- Background: During the "Dajing" of the fictional dynasty, the inner palace of the Marquis Mansion is vaguely connected with the court. The house fights are not only about the wives competing for favor, but also involve old grudges and profit calculations. Sweet pets are shown throughout - the male protagonist's preference is the female protagonist's confidence, and the female protagonist's softness is the male protagonist's weakness.
