Maou-sama no Machizukuri! ~Saikyou no Danjon wa Kindai Toshi~ - Volume 5 Chapter 18

When she woke up, Lake returned to the classroom of the third year. The classmates were in class with swords and sticks, and the teacher became a female Taoist.
The little fat man in the back seat, how to put two big hammers under his chair.
Rick found this to be a global era!

- Description from Uukanshu (translated)

Back to the end of Ming Dynasty, he was reduced to a slave.

This emperor, a beggar can do it, a slave can do it, a bandit can do it, but a house slave can’t do it?

- Description from novelbuddy

Pressured to get married or lose her father's financial support to pay for her mother's medical bills, Joanna Baker, the illegitimate daughter of the Baker family, is devastated when her boyfriend chooses another woman over her on their wedding day.Joanna, feeling distraught, witnesses a man in a wheelchair proposing to his girlfriend at a restaurant. The girlfriend's rejection and subsequent insult for his disability left everyone stunned.Feeling a shared sense of betrayal, she approaches the man with a vengeful proposition.“Excuse me, sir. Your girlfriend dumped you, and my boyfriend chose another woman over me. Let's get married for six months and get revenge on them.”What will Joanna do when she finds out the man she proposed marriage to was none other than Alexander King, the heir of the wealthiest family in NYC? He was also the cold CEO of King Multinational, with a hidden identity, Salvatore Black, whose name caused even presidents shiver? Has she just signed a deal with the devil?

In a certain world, there was someone who excelled in magic combat, people called him 『Sage』. Seeking the strongest combat art, he devoted himself to research every magic and combat arts in existence. And the conclusion he arrived at was very cruel, 『My body is not fit for magic combat』. Yet he didn’t give up. He sealed his own soul with a magic art, and was reborn in a far-off future. And the magic theory in the completely changed world he saw there was of unbelievably low level.