Remus Lupin could be included. Since he was Sirius's friend, and the fact that he is a werewolf could add an interesting dynamic. He could be suspicious of Narcissa's motives when she gets involved with Sirius, and his presence could force Narcissa to confront her own prejudices.
Bellatrix Lestrange could be a great addition. Her extreme loyalty to Voldemort and her relationship with Narcissa as sisters, and her hatred for Sirius as a blood traitor, would add a lot of tension to the story.
Andromeda Tonks would be an interesting character to include. As another Black family member who has broken away, like Sirius, and related to Narcissa, she could act as a mediator or a source of conflict resolution between Sirius and Narcissa, especially considering the family politics at play.
The best chapter pointer here is Chapter 97, "Can This Really Be Broadcast?". It opens with Suddenly, Jiang Li's livestream room was packed with people, and the... and closes on And you believe what she says?.
The best chapter pointer here is Chapter 124, "Officially Certified 250". It opens with Since there were too many points cards inside Jiang Li's barrel, Director... and closes on No need to repeat that number three times.] [Hang on, didn't Jiang Yan....
If you want the clearest chapter reference, go to Chapter 73. Early on, Director Sun, tongue-tied, finally managed to squeeze out a sentence,...; later, the chapter leans on But isn't it due to your production team's lack of consideration?.
If you want the clearest chapter reference, go to Chapter 127. Early on, Witnessing Jiang Li leave with a bucket, Jiang Yan refused to admit...; later, the chapter leans on Otherwise, how would he ever show his face in the Capital again?"....
Look to Chapter 120 for the clearest answer. It begins with Facing the sudden and somewhat strange request from Jiang Li, Director Sun..., keeps building through But, as if by some mysterious force, he still instructed his assistant to..., and lands on Drink this." Wen Jiaojiao looked at the half.
The best chapter pointer here is Chapter 90, "Are You Even a Woman?". It opens with Watching He Yun gradually take control of a tractor under professional... and closes on Jiang Li finally let go of Jiang Yan's arm..
Chapter 92 is the strongest chapter-level answer because it starts from Jiang Li, lightened from any task, had plucked a few leaves from the... and follows through on Finally, someone entrenched in the circle couldn't hold back and sent a....
Look to Chapter 127 for the clearest answer. It begins with Witnessing Jiang Li leave with a bucket, Jiang Yan refused to admit..., keeps building through Otherwise, how would he ever show his face in the Capital again?"..., and lands on He Yun, who chose the codonopsis, became the one with the.
A practical answer is Chapter 84, because it turns the idea into a concrete scene. The chapter opens with When the villagers tasted his curry beef one by one, their faces revealed..., adds pressure through [Pfft, and she's teaching others how to cook, isn't it just scrambled eggs..., and ends on.
Chapter 88 is the strongest chapter-level answer because it starts from She wanted to refuse, but didn't have the courage to do so. and follows through on Let's go," Jiang Li said in a soft voice..