I wanna be rich!!!

[Ding! Congratulations on obtaining the upgrade system!]

A year later...

Umm... system, can I take back that upgrade?
[NO!]
Well then lets hope that no one finds out that I was the one who upgraded the world or else, they are all going to come after me.

Hello, This is my first time writing a web novel. I know that there are a lot of things that I could improve on so any constructive criticism will be welcomed. I will read your comments and try to improve my writing. Thank you in advance for reading this novel or at least the synopsis.