MTL - Crowned with Pearls - Chapter 18 seventeen

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.

She was the Eldest Legitimate Daughter of the General's Mansion, treacherously harmed and died a miserable death. Perhaps moved by pity, heaven granted her rebirth. She returned to four years earlier, not only possessing heterochromia that allowed her to see what others couldn't but also equipped with a portable space. She vowed to make those who hurt her and her mother pay in this life.He was a Prince with a Different Surname from Moli Country, holding military power and commanding awe in all directions. It was said that he had conquered most of Moli Country, and even The Emperor showed him deference. Legend had it he was a bloodthirsty prince who killed without blinking an eye.One day, she encountered a ragged but handsome man on the street, who chased after her, shouting, “My wife, my wife.”The woman said, “Damn it, who is your wife? Aunt isn’t even engaged yet! Go where it’s cool and stay there.”The man responded, “You are my wife, and I've decided to follow you for life.”“A feel-good story, both leads are strong, a pampering love story with 1v1 romance.”

Third Miss Luo relies on her father’s power to create chaos everywhere and is notorious for bullying the weak. When she had nothing to do, she led a group of servants to the streets to flirt with beautiful and handsome boys. For Princess Qingyang, if this kind of person dared to behave wildly in front of her, she would just kill her with a single finger—until she opened her eyes again and found that she became Third Miss Luo, Luo Sheng.

- Description from Novelupdates

He rose from abjection and achieved eternity in glory.
He embraced the prettiest beauties and killed the strongest opponents.
He was able to shift the clouds into rain and cover the sky with one hand.
He could overrun the entire world and go anywhere as he pleased.
He pacified wars and held the world in awe.
He was matchless in the world.
However, his hair turned white overnight for his beloved woman and he was on the verge of death.
He was surrounded by enemies who were trying to take his life.
He struggled his way to become mighty and fought for everything he cherished.
For this age, he was the only king of the Dark World.
His name was a byword for might.
As a man living in the world, his only ideal was to pursue brilliance.

- Description from Novelupdates