@bibliophage
Her main objective is to get back to her original world, and at the moment, she has nothing except the system to rely on, which has been with her from the start.
And what if she destroys the world, then the system might just send her to another world, or maybe restart this world and send her back in time? Also we wouldn't have a manhwa to read if she destroyed everything from the start.
I love cookies, ducks and knives