MTL - I Made Scientific Magic - Chapter 61 Olympiad

Leisurely on the fairy road, the sword points to longevity.

At first, Chu Yu thought that she had transmigrated into a typical ancient housefighting novel. And all she had to do was grow up and get married quickly, and then, it would be perfect if her husband died and no one cared about her. Who would have thought that when she walked out of the backyard, she found out, hoho, this is a xianxia with a genius female protagonist- her eldest sister. Her eldest sister, Chu Qiong, had the golden finger of an immortal mansion. Her second sister, Chu Fan, who was suspected of being transmigrated from the same world as her (Captain Chu?), had a golden finger as well.

And she, a cannon fodder, the little Chu Yu, having poor qualifications and a short lifespan, vowed that she will never give up and be ridiculed!

She will fight against fate! Live long!

Strive to live until the end of the world, and live longer than deities.

Fortunately, she got a book of exercises that can be automatically practiced.

Fortunately, she can sell goods across all dimensions and accumulate resources.

Fortunately, she has two lovely sisters who will never give up on her, and think that she is prodigal.

The road to self-cultivation is extremely cruel, and many amazing and talented people fall halfway, but the three sisters want to see the scenery at the peak of this immortal road.

- Description from Novelupdates

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

There are a total of seven sins, and a revelation is made to a young man named Alex that he is destined to become a demon lord, more especially a demon lord of sin called LUST.

It's not like he can change that and because he always knew something about himself was different—not in a physical sense, well, maybe a little—and not in a mental sense—but rather because he is thrown into a demonic war that compels him to accept his new reality.

He was only aware of a difference in himself. Relating to him and the ladies who are drawn to him... Well, it was more or less like he was a magnet in front of all the girls, and all the girls were drawn to him like a metal.

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates