King Of Limbo - 18 Chapter 18

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.

Calamity descends upon a a tranquil world in the black of night, transforming it into a death game! This a a true apocalypse, but this is not the end of humanity!

- Description from Novelupdates

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”

Xie Lanyin has a beautiful face with white skin so relying on her face to live is no problem. Furthermore, the prince that she marries is a phonophilia (someone who loves voices/sounds).

A handsome man saving a beauty, he lets her sing songs to repay him.

Getting angry and yelling at him, he’s intoxicated.

At night when he wants to sleep, her words are hypnotising.

When he doesn’t want to sleep, her words become the best ……

Qin Wang: You think too much, the thing I like best is you as a person.

This is a story of a prince spoiling his wife, until even when he becomes a king, he’s willing to bend back so far that he could even break his waist – it’s that kind of story.

- Description from Novelupdates