My Ceo Husband is Sworn Enemy - Chapter 60 - The Cheapest Woman is the One who Pays _1

Rael, once a teenager crippled by social anxiety, is reincarnated 1,553 years into the future after reading a book about Milford, the legendary God of Machima—a man who commanded armies of Steelborn, Machnoids, and Autonoms across the universe. Gifted with the Machima Bloodline and guided by Dominica, the World Domination System, Rael quickly rises to become the strongest World Conqueror.He first saw them on the book’s cover—steel women with lifelike faces, beasts with razor limbs, and looming above them all, a god in robes with a mechanical hand raised high. Coiled over him were a gigantic centipede and serpent of metal, guardians of his legend. Now, deep in a junkyard centuries later, Rael forges his own path. His first creation: an unbreakable fortress born in the dirt, a hulking Steelborn Tortoise with a mind sharper than any AI—crafted by Rael’s divine talent. From admiring Milford and wishing to be like him, Rael now marches forward to leave his own mark on the universe.Join him as he rises in rank across his world—and beyond.

This is an extremely difficult game, if you don’t have enough skills, don’t even think about going out!

- Description from Novelupdates

In 1930s Canada, a 16-year-old landlord unlocks a System unlike anything this world has seen—a power that lets him grant supernatural abilities drawn from warriors of another realm. Barbarians, Archers, Wizards… all under his command.

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.