Royal Secret: I'm a Princess! - Chapter 7

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.

Su Ling was reborn before the end of the world, and got a system that can strengthen everything.

In order to survive, she made the greatest preparations in the shortest time, took revenge on the scumbags and scumbags, and then embarked on a new journey.

On the way, she met Sheng Hongye, an all-around handsome guy. At first, she just wanted to live a good life, but later she found out that she had somehow become the hostess of a new type of tribe.

“Sorry, I’m not interested in the hostess.” Su Ling said with a cold face.

A certain man: “Good boy, then let’s work on the infrastructure.”

Su Ling was annoyed. “Go away, is there anyone doing infrastructure work on the bed?”

A certain man: “Hey, I know you’re tired, so let’s be your successor.”

- Description from novelbuddy

Utsuro no Hako to Zero no Maria, or The Empty Box and The Zeroth Maria, tells the sinister story of Kazuki Hoshino, who is almost madly attached to his everyday life, and his antagonist Aya Otonashi, who suddenly transfers into his class—for the 13,118th time. She majestically announces to “break” him, without paying heed to anyone else around them.