Reinventing Magic: An Inventor's Tale - Chapter 9: The Obsidian Cavern

Wei Ruo, a highly skilled doctor, was time traveled as a female supporting role in a novel. She was left neglected in the countryside for ten years and returned back when she was thirteen years old.

Seeing that she only knew how to grow flowers, grass and vegetables all day long, everyone thought that she was a peasant woman.

As the female supporting role, Wei Ruo did not want to fall in love with the male lead, nor did she want to compete with the female lead. All she was thinking about was to make money, make money, and make money!

When the fake daughter was still worried that Wei Ruo’s return would affect her status, Wei Ruo had quietly saved up a private fund.

When the fake daughter was still trying to attract the male lead’s attention, Wei Ruo had already made a big fortune.

If you want money, you have money, if you want food, you have food, The shop was opened one after another.

Later, her brother became the first minister, her father became the general, and the one sitting on the emperor’s chair was her husband.

- Description from Novelupdates

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.

Once an imperial princess, now reborn among the lowest of s*aves of the nobility.