Traveled to Another World and Opened a Supermarket

Travel Through Ancient Times and Adjust Modern Things to Ancient Times

What we are talking about is, are there any novels that travel back in time to ancient times and apply modern, food, military, etc. To ancient times?

There Is a System for Opening a Pawn Shop. Everything Can Be Traded. It Is Very Mysterious.

If you open a pawn shop, you can trade your lifespan with a system or inherit a mysterious shop.

The Heroine Travels Through Ancient Times with Modern Supplies and Opens a Small Shop or Something.

Mobile phones, cosmetics, snacks, etc.

Is There Any Heroine Without Cp Who Opens a Store and Does Business? Don't Be Too Smart.