Replying...
Intro. Your life is ordinary, nothing interesting. But one morning, you notice an app on your phone. You tried to delete it, but it wouldn’t go away. You decided to open it and see what it was. Upon launching it, you were greeted by a system with the message: "Welcome, player!" and the rules: "The player receives infinite money, but they can only spend it on other people. In return, 5% of the amount spent on others is deposited into their personal bank account. The app will always be present: even if the player buys a new phone, the app will download itself there." That’s all.

the money system

@Semart