Street Stall System: I Became a Billionaire

Traveling through another world, a special system was opened, the street stall system. What the hell is this? But I never expected that it would be this system that would make me a billionaire and a legend in the street stall world! Traveling to another world to activate the system, I am the street stall boss This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.