MTL - Pass Through 80s: A Notoriety - Chapter 403 here it is

Goddamnit! Now I’ve got to look for another job to pay the bills! That f*cker! I did nothing wrong!

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~

Crossing into a different world and impersonating the Lord of a city, a city encompassing five hundred miles, an elder sister having celestial beauty, and double digit number of lovers.

Tasked to revive a perilous family, Lanling, a third year university student, felt an overbearing pressure on his shoulders.

Hosting the Demon Star in his body, he can directly devour other people’s force and make it his own, he crossed through with a sole mission: To Utterly Destroy This World!

From being the Lord of Tianshui City, becoming the Queen’s husband, to being the World Destroying Demonic Emperor, he became the King of the entire world.

- Description from Novelupdates

Three Days of Happiness is a novel by Sugaru Miaki, also known as Fafoo. It’s a rewritten version of the story originally posted to 2ch.

The premise of the story revolves around a shop where one can sell away the remaining years of their life, and the consequences of doing so.

“I Say A Little Prayer” is a short related story which was posted along with the novel’s release. It spoils some things about the main story, but nothing major.