MTL - Chaos Fiend - Chapter 82 Separation

Born naturally defective but possessed by the spirit of a divine dragon. Inheriting the divine dragon’s will and power, growing scales and magical claws, imperial waters containing the breath of the dragon, travelling through clouds and summoning rain, an invincible physical body. In this world and era, countless men dream of slaying dragons. Li Mu Yang has always lived a hard life.

I exist in the darkness, disappear under the bright light, and will eventually devour the sun and turn into the shadow of all things… Known by people as the indescribable terror of darkness; the king of shadows; the dark day; the existence of the shadow of the world , is still just a somewhat special high school student, facing a weird death game…

- Description from novelbuddy

Fresh off the battlefield, Marshal Ke Lian received the startling news that his never-before-met fiancée had faced a family tragedy, losing both her parents. Despite inheriting a massive fortune, she now required someone to look after her.As the top-ranking figure on the “Empire's Most Popular Young Men Among Women” list, Marshal Ke Lian, known for his unparalleled charm and prowess, dutifully followed his father's wishes and married Du Xixi.He had envisioned Du Xixi as a delicate flower in need of tender care. But who could have imagined that the girl wielding a kitchen knife, fiercely battling the Humming Beast, would be the same one needing protection?Du Xixi stumbled into the Star Era, finding herself parentless and with a billion-dollar inheritance to claim... Oh, and a supposedly handsome fiancé she had never actually met.As the sole heir to the prestigious Imperial Chef Family, Du Xixi gazed at the rows of sleek Mecha in her new husband's courtyard and couldn't help but feel that a kitchen knife aligned more with her true temperament.

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”