I Found the One-Yuan System: the System Forced Me to Open a Store and Upgrade It.

After Tong Ran accidentally picked up a coin, he unlocked the one-dollar system: everything can be purchased for one dollar, and if you sell it for a certain amount, you can unlock the next timeline. Tong Ran was not interested in this. She might not have opened the system without permission. When she wanted to go back, she found that she could only rely on upgrading... From then on, Tong Ran had to open a Vientiane store just to find her timeline. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.