After Raising the Villain’s Kids, the Ungrateful Little Brat Begged on Her Knees, Crying

[Ancient child-rearing + an unflappable, fiercely ambitious heroine + a seemingly gentle but secretly ruthless reborn hero + devoted 1v1 romance] Workaholic Chu Yunshu pulls an all-nighter and drops dead, only to wake up inside an S+ costume romance drama as the short-lived widow of a fallen marquis's household. The moment she opens her eyes, her future stepson, an ungrateful wretch who will one day drown her with his own hands, timidly calls her “Mother.” Her vicious mother-in-law watches her like a hawk. Her dowry has been picked clean, and everyone is waiting to suck the last drop of blood from her. Chu Yunshu smiles. Good thing she comes with a Three Realms Trading System. A wretch who won't take to her? Then he can step aside. She turns around and buys from a slave trader the villainous brother and sister who will one day roil the imperial court, then raises them herself. While she's at it, she picks up the future male war god and starts a grand child-grooming project with him. The marquis's estate doesn't even own a single book? She exchanges System points for the complete Records of the Grand Historian, and the villainous siblings study late into the night. She then sends them to the academy, where they become the headmaster's favorite students. She reclaims her dowry, gathers loyal servants, and clings to the fated heroine's coattails, turning the marquis's crumbling household into a top-tier star of the capital. Until her handsome younger brother-in-law, reborn in this life, blocks her in the corridor, his gaze dark and intense: “Sister-in-law, this time, let me protect you, all right?” Before Chu Yunshu can answer, the villainous siblings laugh coldly in unison. “You want to marry Mother? Ask us first if we agree.”