Halfway through her journey, Catherine runs out of money, which causes her to be thrown onto the roof of a skyscraper in the middle of the city.
She has no money, no friends, and no way to get down to earth.
To make matters worse, the place is crawling with unsophisticated sewer dudes.
By a fluke, she finds an abandoned building that houses a sleeping AI AI. The AI needs a partner to fully function, and so a bar establishment pops up on the roof. The AI is obsessed with catering, and his ability to self-learn is astonishing and even frightening in places.
Together they must contend with uninvited guests, an aggressive landlord, manipulative neighbors, and more. Over time, EI figures out the needs of the visitors and begins to corrupt Catherine for the prosperity of the business. Catherine is left with two choices: outsmart the AI and escape on favorable terms, or become the perfect servant.