Shinwa Densetsu no Eiyuu no Isekaitan - Volume 9, Chapter 1 – Before The Storm, Part 5

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.

Xiao Ze, who was dedicated to the people and vowed to become a generation of Ming Jun, accidentally fell on a little lady.
The little lady was born beautiful and lovable.
So Xiao Ze accepted his life and got the name of fear.

ps:
①The male protagonist has no concubine, and he is dedicated to serving the country.

- Description from novelbuddy

Drizzles in the wind, a small shop with pennants, and flower-like vintners.

Xinfeng’s fine wine, tenderly-fresh sunflowers shoots, and superb delicacies.

Lin Yan, Shaoyin of Jingzhao laid his eyes on the restaurant’s owner who has skin as fair as snow and beautiful apricot eyes.

It was pitiful and pathetic for a young lady from high-society to fall into the situation of selling wine…

Yet Shen Shaoguang thought: With wines and delicacies, and being able to see handsome young lads pass by…Life is treating her well enough!

Lin Yan’s expression was heavy, these young lads dress up fancily every day, showing off themselves and playing boring games like rooster fights and dog races…It’s time to straighten them out!

- Description from Novelupdates

Xuanyuan was reborn into a strange new world where training to be a Xian was a cornerstone. There was however something ancient dwelling inside his body. He could now devour all of creation…

This is the journey of an ordinary boy and his transformation into the supreme being that reigns over all existence! Everywhere he went, he could not help but tie his fate with numerous women. It did not matter whether they were a goddess or a devil…

- Description from Novelupdates