MTL - Book of Technology - Chapter 440 do not understand

A poor boy whose parents died accidentally found a mysterious space and set foot on the avenue of cultivating immortals. From then on, he planted spiritual herbs, refined elixir, opened shops, trained troops, and established a fairyland…

This article is about cultivating immortals and farming, not for mortals, not for stallions.

The dawn era after the end of the half century has gradually rebuilt the order, abandoned civilization, and is full of undivided violence and desire.
The noble and powerful pioneers are in charge of the city, and the evil and mad plagues are in the wilderness.
Pure human beings who cannot mutate are the weakest, dominated by the rulers of the pioneers, and are not as good as animals in the wilderness.
A purely humanized young man with a worldly experience has quietly entered the WTO, holding a three-foot long knife and a long-distance desire to boil in the world of purgatory. From the nameless name to the sorrow of the Supreme Court, the name of the black ride is resounding!

- Description from Uukanshu (translated)

The Swordmaster who has returned by chance to save the world!

The 27-year-old genius beauty doctor Xia Qing dies in surgery!She is reborn!She is reborn in the ward she's most familiar with, in the body of a 200-pound pregnant woman—a woman who had died from pain during a Cesarean section due to her requests to not use anesthesia.She can't help but worry about herself. This body was useless except for being young.How could Xia Qing tolerate this?On the menu are—revenge, losing weight, and snatching the idolized man of a scumbag girl in passing. Although she's overweight, she strives to live well. Being overweight isn't the end of days. They still deserve love.“Have you heard? Boss Pei has a child out of wedlock. He's getting married!”“Who's he marrying? Who?”“That 200-pound fatty from the Lin family of South City!”“Is Second Master crazy?”Lin Xiaqing turns her head to look. “You think I'm fat?”Pei Zhengyang looks at the voluptuous woman. “Not at all, just nice to the touch.”