Transmigrated into an Old-School Tragic Novel as a Tool

Su Li discovers that she's transmigrated into a book, becoming a tool character who helps bring the domineering CEO and his runaway wife, pregnant with his child, together. Her daily activities consist either of urging the heroine to find someone new or telling the CEO how hard life is for his wife and child. As the ultimate background character, appearing in an extra chapter, she has to be gorgeous and haughty. Even the man she's paired with has an overwhelming aura of dominance... Poisoned by melodramatic dialogue and domineering CEO tropes, Su Li declares: I'm an emotionless career-building machine :) Just as she's about to put on her sunglasses and swear off love, she notices that the doctor who's supposed to be her "comrade in the same trench" seems to have a problem. Ji Zhaolin is an attending orthopedic surgeon. Handsome and easygoing, he's the department's famous eligible bachelor. But he has a domineering CEO for a friend, so aside from his regular work, Ji Zhaolin's lines are limited to: "Can you stop calling me in the middle of the night every single time?" "I'm an orthopedic surgeon, and you want me to bandage someone's wound?" "She's delicate and frail. She can't take all your messing around!" He has no opinion about his friend's choices, but what's with that female celebrity looking at him as if she's just discovered some illicit romance?! Theme: Everyone is the main character of their own life.