Transmigrating into a Book: The Cannon-Fodder Heroine’s Guide to Doing Nothing!

Transmigrate into a book + historical domestic intrigue + face-slapping and taking down scoundrels + the male lead chases his wife Song Shiwei woke up one day and found that she had transmigrated into a book! Worse, she had become the cannon-fodder female supporting character in a historical romance novel! She was only supposed to live for a few chapters! Seriously, who wants to be this ridiculous heir's wife? So what if her husband brought another woman home? Just take her in as a concubine! Her mother-in-law brought her cousin into the household, hoping she'd seduce her husband? Go ahead! That scumbag is willing to sleep with anyone! Just don't bother her. What? The mistress wants her authority over the household? She was already fretting over what to do with that hot potato... If the woman wants it, she can have it! Song Shiwei stirs up trouble at every turn, throwing the marquis's household into chaos. Anyone who tries to harm her will get what they deserve. But just as she's about to dust herself off and leave, free to roam wherever she pleases, with a wonderful life waiting for her, why is her belly getting bigger by the day??? Mo Yanchu has finally found the woman he has been thinking of day and night. Seeing her swollen belly, he clenches both fists!! Before he can ask anything, he sees Song Shiwei clutching her belly in pain, her eyes red as she looks at him. “M-My lord...! The baby's coming!” Holding her in his arms, Mo Yanchu's eyes turn bloodshot. “Doctor! Hurry and get a doctor!!!” The male and female leads have no romantic past with anyone else.