The Sickly Emperor Is Only Immune to Me - Chapter 340 - 337: Branding

A reputation as ‘The Most Feared Gunslinger In the West’, and the Law hot on his heels, Henry Morgan had lived a full life. So when it all ended with a gunshot to the back of his head, he was quite ready. He embraced death… He embraced his end.Except it wasn’t the end…Some mysterious [Powerful Forces that be] wrenched him out of the world he knew and deposited him into the body of a version of himself in a Parallel world. A world where something as ‘impossible’ as Magic apparently exists.These [Powerful Forces that be] went a step further by granting Henry a System and issuing him strange prompts and Quests that send him down a road of Adventure and bloodshed all so he can etch his name in history and show this world and its many ‘wonders’ just how deadly a Gunslinger can be…

“Send me to the past.” That’s how the first step toward revenge began.

Aoki’s resolute face was indifferent. “If the sun doesn’t shine on me, please let me be surrounded by darkness!”
From a different perspective, look at the entire Pokemons world.

- Description from Uukanshu

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”