This Japanese Monogatari Isn't Lame - Chapter 65. Tanaka Takashi, Yamakou Hideyasu

She was the world’s number one genius assassin who struck fear with just a mention of her name. Ruthless and merciless, she killed without leaving a trace. Yet she was deceived and used by the organization, and met a tragic end.

When she was reborn, she became a fat and s*upid female student.

Fat?

She stunned everyone after losing weight!

s*upid?

The president of Peking University personally came to recruit her!

Useless?

Hacker idols begged to call her goddess!

Medical giants knelt to become her minions!

Even mercenaries chased her shouting “Boss”! Math geniuses clung to her asking for solutions!

She just wanted an ordinary life, yet accidentally rose to be number one again, and gained a cunning big shot who protected and secretly pursued her.

The male and female leads fought like cats and dogs, both incredibly sly~

[Dual clean, sweet doting, face slapping, falling from grace, big shots…] [The female lead is calm, strong, a genius who acts before speaking.] [The male lead is cunning, careful, jealous, and dotes on his wife.]

No silly behavior, safe to indulge~

In this world, there is the beautiful mutual and telepathy love.

“Even if this universe is truly nothing more than a brutal bloody shadowy forest, we Cultivators will burn all that we have just to give off a single weak flickering spark in the darkness!

No matter how weak each spark is, how short-lived, how small… As long as the sparks flow unabated, then one day one of those sparks will light some tinder, and that tinder shall light some fallen branches, and those branches shall set ablaze each and every last tree of the forest!

In the end, even the smallest sparks will eventually set the shadowy forest ablaze, and illuminate the whole world!”

In a world teeming with cultivators, Li Yao, who makes his living collecting scrap metal, encounters the soul of a titan powerhouse from forty thousand years in the past.

- Description from novelupdates

The whole world mutated. Mysterious resurrections happened in real life. The Tribulation descended.