My Two-sided Cultivation: Starting From Collecting Experiences - Chapter 646 - Fighting the Beast King

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.

Kyle was just an ordinary gamer until a truck-kun decided he was isekai material.Waking up in the world of Path of Transcendence—a novel he once read—he realizes he’s not the hero, the villain, or even a side character.He’s an extra, someone who was never mentioned in the story. But this world is no fairy tale: it’s cursed, doomed to fall to demons, with every major character destined to die.However, Kyle isn’t as ordinary as he seems. Blessed by the Roaming Storm, a mysterious and powerful force, he wields the rare ability to command lightning, wind, ice, and water.But is he truly just an extra, or is there more to his role in this doomed world? Armed with his knowledge of the novel and his newfound powers, Kyle must find a way to survive in a story that wasn’t written for him.Can he become the missing piece that changes the fate of this world, or will he be crushed under the weight of a plot that doesn’t even know he exists?

In a modern world, a professional assassin was murdered by her beloved and found herself revived in an ancient world as a general’s daughter with a weak physique. She was engaged to a prince, but because she did not have a nice appearance, her fiancé and sister attempted to kill her. Although she had to struggle to survive, there were also those who unconditionally loves her that supported her in her time of need.

Her original self was a powerful jiangshi who had cultivated for innumerable years. However, when she attempted to unlawfully enter the world of the immortals, she was discovered by the Jade Emperor and thrown into the mortal world as punishment. Her soul then left her corpse, fusing with the body of the Motian Dynasty’s sixth princess. She didn’t even have a chance to fully comprehend her current circumstances before her maid unexpectedly ignored her mistress, even publicly provoking her!

“What? That weak and cowardly idiot who has neither her father’s love or mother’s favor actually mistook her older sister as her maid?! All the royal princes in the world loathe her?”

“Damn you! This old lady will let all of you understand why the flowers are so red!”

“Hey! Did you hear? That cowardly sixth princess unexpectedly snatched away the man that the eldest princess favored today!”

“How is that interesting news? That fourth princess who ran always ran amuck in the capital city is now confined to her bed now!”

The good-for-nothing counterattacks! The previously cowardly and incompetent sixth princess suddenly reveals her exceptional talents! She is full of radiant elegance, and unparalleled disdain!

She is driven by the desire to shed no more tears! However, if she had known what would happen later, she would have been better off acting stupid! She had calculated thousands, tens of thousands of scenarios, but had never calculated one where one day, her own prey would unexpectedly turn around, and ruthlessly bully her instead! Damn it, she still hasn’t sucked any blood yet!

- Description from Novelupdates