Transmigrate into a Book and Be Exiled: The Doomsday Expert Dotes on a Mad Villain

(Goofy foodie apocalypse veteran vs. brooding, scheming, possessive villainous Imperial Preceptor, 1v1 with no romantic history, transmigrating into a book, exile, apocalypse veteran, villain, System, sweet romance, farming) Qiao Sheng'er transmigrates into a book and becomes the cannon-fodder supporting heroine who conspires with the Crown Prince to frame her husband, the Fifth Prince, for plotting to seize the throne! Luckily, she arrives just as he's been exiled, before the Fifth Prince turns into the villainous Grand Imperial Preceptor! Qiao Sheng'er: Should I just kill him while he hasn't turned evil yet? An ultra-powerful System instantly appears in her mind, beeping away: electric shock punishment. Qiao Sheng'er immediately shakes like a sieve and calls for it to stop, snuffing out that little spark of an idea. To avoid being electrocuted, Qiao Sheng'er has no choice but to serve tea, wait on the great villain hand and foot, fuss over him, and flatter him while she's at it: “Great villain, you're handsome and dashing, brilliant and mighty, and so full of heroic spirit. You make everyone shiver with your icy presence, and your aura sweeps across mountains and rivers. You're like a flower blooming on a lofty peak.” The great villain gives her a cold sidelong glance. “Open your eyes and say that again.”