Married Off to the Cold Palace, I Win the Tyrant's Heart When He Hears My Thoughts

[Transmigrate into a book + substitute bride + mind reading + goofy survival antics + tyrant + devoted to each other]

Song Yun Zhao transmigrates into a book and becomes the cannon-fodder supporting character who takes her elder sister's place as the bride of a deranged, deposed crown prince, the future tyrant who will destroy the world.

In the original story, the bride tries to poison the tyrant on their wedding night, and he has her limbs chopped off on the spot.

She arrives on the very night of the wedding. Holding a cup of poisoned wine and facing the tyrant's murderous glare, Song Yun Zhao promptly drains it in one gulp.

"Husband, this wine is too cold. Let me warm it up for you!"

Gu Yan Xiu, the tyrant, has just awakened his mind-reading ability when he hears the woman before him frantically grumbling to herself.

[Drink, drink, drink! I'll drink it, then hurry up and spit it out. After that, I'll play dead! As long as I make it through tonight, I'll be the most carefree fish in this cold palace!]

Gu Yan Xiu narrows his long eyes. Hah, you want to die? Then I insist you live to be a hundred.