It's bad enough to be broken up in love, but also to be hit by a meteorite and transported to another world.
This meteorite looks like a brick, but it claims to be an artifact and a super-civilized intelligence. It fools people into trying to bind it, but after binding it, they discover that this guy is an unscrupulous businessman.
It was promised to upgrade the system, but it actually upgraded itself.
I have to buy back the junk it converts at a high price.
You said it was unreliable, but one day, it created magic versions of Barrett and Gatling...
Well, it's pretty cool to see cultivators chasing after you with a rocket launcher running all over the sky!