Starting with Check-In Sacred Body of the Ancients - Chapter 81: The Fall of Two Great Ancient Kingdoms, the Mysterious Young Master Behind the Scenes

For the large sum of money to help her husband, she chose to be a surrogate mother covertly. Her sweetheart was out of trouble, but she became the woman of loose morals in his eyes. Misunderstanding, disappointment and sadness forced her to divorce the man she loved from the childhood.

When she was determined to start new life, another man burst into her life. “You are my baby’s mommy and you are my wife!” A big surprise hit her that her baby’s Daddy, the man she surrogated for, fell in love with her at his first sight.

His deep love convinced her to believe the affection of love again. Unexpectedly, her ex-husband returned to beg her recombination. One was her childhood sweetheart, and the other was the man who loved her and gave her hope for a new life……Facing the two men, what is her choice?
 

- Description from Novelupdates

In the fifth year of the apocalypse, when it was coming to an end, Sunshine Raine died, killed by her cousin and her fiance. Sunshine only had one wish, if she could go back in time, she would not make the same choices she had made. In this dog eat dog era, she would be the top dog.When she opened her eyes again, she found herself back in time, one month before the apocalypse.A few changes had happened, one, she was in bed with Hades Quinn the father of her foolish fiance in her last life. Not just that but they had a marriage certificate!Two, her sister was also reborn and in this life, she had chosen to marry the foolish scummy ex.It made Sunshine his stepmother!! Granted he was adopted by her husband but it was all the same, she was now his mother and her cousin's mother-in-law.Despite the surprises, Sunshine focused on the upcoming weather disasters, monsters in the mist and humans that were more savage than those monsters.With a system in hand and knowledge of what was coming, she used her wealthy husband's money to stockpile, sold the family property and went on to rise again as the apocalypse queen.While her cousin was being starving and suffering with the man that was pretending to be a fool, Sunshine was being pampered and kissed by the male lead.While her sister was being forced to work by the fool, she had three step sons to work for her.As promised, she became top dog.

A girl who calls herself a demon appeared before a timid student named Fumio Kijima. The girl claims to be a campaign girl from the demon world and she gives him the ability to “summon a room” from nothing but thin air.

At first he doesn’t abuse his power and uses it as a convenient ability in his every day life. But one day he is bullied by his classmates under a false pretext and is made to suffer. In the past he would have wallowed in misery and cried himself to sleep, but now he had a power to call upon.

“I will make them regret it!”

Using his powers to summon his “room”, he begins his era of confinement and brainwashing to achieve his goals.

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.