ABO Cadets - Volume 1 Chapter 4

The next morning, Jian Anning asked, “What is happiness?” Yu Xingxing hooked his lips into a smile and suddenly pulled her into a tight embrace. “Happiness,” he said, “is being with the one you love and doing things that make you happy. Let's continue, wife!” Jian Anning kicked him off. “Get lost!”

Lady Mi Qing ran away from home to escape an arranged marriage. She is then confronted with the following wretched situation:

Card stopped. Money stolen. All she had left was ￥308.50.

In this strange city, her sole hopeful light was a small advertisement on a lamppost——

Elaborately Decorated, 100 Square Meters, 2 Room Apartment, Monthly Rent Only ￥299! If interested, quickly contact Mr. Xiao at 138XXXXXXXX!

Mi Qing immediately rushed over to the address listed.

Xiao Gu looked at the woman standing in front of him, brows slightly furrowed. When did he post an apartment rental advertisement?

- Description from Novelupdates

After a long slumber, Zhou Yi wakes up in a wasteland era. He discovers that the new humans, to avoid the daylight supremacy of the Guangna species, only dare to come out at night, meekly whispering in the darkness and scavenging for trash. Exasperated, he questions how humans could have deteriorated to such a state. Lamenting that each generation seems to be worse than the last, Zhou Yi decides to show them the ways of the older generation. Embarking on a quest to transform the wasteland, he aims to rebuild the lost splendor of humanity.

There’s the so called class transfer.

Among the high school students that were given cheat abilities, Kirishima Ran was given 『Underling Training』for some reason, a skill that can make a woman a slave.

Ran who was driven out by the kingdom using an absurd reason will make use of the given skill freely to take revenge on his classmates, release his desires (This is mainly the reason), and fight off the world’s system.

It’s a story of him using his wonderful skill making his classmates turn to an obedient cute and lewd slave.