My Succubus System - Chapter 200:

Xingyi Fist Grandmaster Xiao Yi's soul transmigrated to another world.In this world dominated by Martial Artists, Xiao Yi obtained a Martial Soul that defied the Heavens, embarking on a journey to crush countless contemporary talents and achieve the status of Soul Emperor and Martial God.Shattering Heaven and Earth, breaking through the vault of heaven, he reigned supreme over All Heavens and Myriads of Worlds.

She was reborn as the antagonist of a fantasy novel, a child who bears her family’s resentment.

As it stands, her fate is to end up on the guillotine at the hands of the furious villagers!

Kynemeia, for the sake of a comfortable future, plans to gather some Munchkins to govern the fief. However, there’s one problem…

Kynemeia stared blankly at the boy sitting in the underground prison.

“…Why?”

“I got caught.”

She’s on the receiving end of an unwanted obsession from a suspicious mage?!

This is the story of the struggles of a Grand Duke’s daughter who wishes to transform her life
and the Munchkin mage who feigns innocence!

*Munchkin: a Korean slang for a character with overpowered skills.

The story revolves around Charles Karino, a Levaamu Empire mercenary aerial pilot who mans the twin seater reconnaissance seaplane Santa Cruz. One day, he receives a preposterous assignment: to fly solo over 12,000 kilometers of enemy waters to protect a girl named Fana del Moral. Fana happens to be the next in line to the empire’s throne and a girl possessing beauty “equal to 5,000 beams of light.”

This is a standalone book. There’s another series under the name “To Aru Hikuushi e no Koiuta” (Love Song for a Certain Pilot) set in the same world, but in a completely different place and with different characters.

– Ulrezaj @ Mazui

Adapted to anime as “The Princess and the Pilot”

This novel is also known as Master Fu's Mysterious Darling Wife

She is the The Young Miss of Military family Shen, her face is peerless, her temperament is cold, and she is her family’s treasure, but isn’t accepted as one’s child by her mother;

He is The Sole Heir to the top giant Fu Family, his power is unparalleled, indifferent high-born, the captain of the mysterious military force, and the youngest commander-in-chief.

Because of her grandmother’s wishes, she married him at lightning speed. She thought that it was a marriage that she needed, but she didn’t expect to be greeted with his extreme pampering.

- Description from Novelupdates