Transmigrating into a novel in the 1980s marrying a sickly but handsome man

Ye Linlin, an orphan who finally became a successful businesswoman, ended up getting herself transported into a novel while taking a bath. What?! And as a vicious female supporting character? Dying a bloody death in the end? No way! Knowing the plot and possessing a spatial cheat ability, she has to defy fate. The male lead is my brother, the female lead is my best friend, I’m the family’s little princess, I’ll marry a retired soldier king, have an adorable child, and be pampered by the whole family. Forget plastic besties, blind fiancés, and scheming green tea girls, they can all get out of my way! But! Why did the retired soldier king become a gigolo after marriage? No choice but to work hard to earn money to support the adorable child!