MTL - Urban Demon Slayer - Chapter 1124 Bull Demon King Appears

Asura – proud, warlike, cruel, heartless.

A young adult with a mysterious background follows his father’s prophecy and enters the world of «Rebirth», somehow managing to inherit the Xuanyuan Sword, and also unexpectedly obtaining the hidden class Asura.

Following the tracks of both virtual and reality he gradually discovers a secret hidden for the past billion years.

Asura, the class that used to shake the lands has now completely disappeared. He must now go on a journey to find the true meaning of Asura—until the day he transforms and becomes one with Asura.

- Description from Novelupdates

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.

Once time travels, Wei Han awakens the immortality system!

In this dangerous and mysterious world, he decided to live forever!

“What’s the point of fighting and killing? Isn’t it nice to hang up?”

“Enemy? Doesn’t exist! As long as we cut the grass and roots, I have no enemies!”

“Exposed? Impossible! As long as no one is left alive, no one will know how strong I am!”

The sun and the moon are flying like a shuttle, and the sea is changing!

With a cautious heart, Wei Han silently walked alone on the road to longevity.

A rare martial arts wizard in a thousand years?

The rare immortal cultivator?

Suppress the eternal holy land of immortals?

After all, it is no match for the passage of time and burial!

Only Wei Han sat and watched the wind and clouds surge, and finally became invincible in the world!

- Description from novelbuddy

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”