The Great Merchant in the Cataclysm - Chapter 23

Zhao Chuchu was reborn in a time before the apocalypse. As soon as the space was filled with supplies, something fell from a high altitude and killed her. Then, she transmigrated, becoming a small villager in an unknown dynasty. She started this new life by taking out the natives, dealing with the plague, and becoming a divine doctor in one fell swoop. Using her fists, she gained high status. She bullied those scums until they cried for their mommy and begged for mercy. She produced large quantities of rice, beans, and sweet potatoes… She could do everything, and she earned a lot of money with that. Everyone watched as she reconciled with Xiao Xiucai. They watched until a baby was born, as well as until Xiao Xiucai became the top scholar and smoothly became the Chief Minister. Then, everyone waited for the day the Chief Minister would divorce his wife, who went through hardships in life with him. They waited and waited until the couple had grown old, the two living together for the rest of their lives.

After transmigrating into a harem novel, Lin Xiao became the villainous Eldest Senior Brother of the Azure Mist Sect.By following the original storyline and being a pesky villain, he could eventually attain his reward of becoming immortal.Having no other choice, he carried out his duty as a villain conscientiously. He would tease Fourth Junior Sister, steal Third Junior Sister’s clothes and spike Second Junior Sister’s drink.Finally, the day when Ye Chen, the male protagonist, joined the sect came.Lin Xiao was exhilarated. According to the original plot, he would attempt to Ye Chen, be caught by his Junior Sisters, and be humiliated by Ye Chen.Yet, to Lin Xiao’s surprise…“Big Brother is too kind. The poison he has prepared is such a child's play. Let me show him how it’s done.” Second Junior Sister said.“Kill Ye Chen! Kidnap Eldest Senior Brother! He is mine!” Third Junior Sister declared.“Kill everyone! Let’s create a world with only Eldest Senior Brother in it!” Fourth Junior Sister exclaimed.“My sweet disciple, he’s so cute even when he tries to poison someone furtively.” His beautiful master swooned.Lin Xiao screamed internally, “Read the scripts, all of you! I’m the one who is supposed to be killed!”

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

I was a 28-year-old researcher in Japan, and before I knew it, I have been reincarnated in a fantasy world.

Furthermore, I had a half-spirit father and a spirit mother.

An aunt who is deeply attached to father, cousins who are problem children. Girls who cause awkward situations as in an otome.

Furthermore, in order to gain the affection of a love interest, a cousin even had a word battle with a king!

I am very busy helping humans as well as spirits!

And when I find people who are targeting my father,

「I’ll crush you.」

The cheat protagonist deters those who aim at her family. This is such a story.