When Catherine ran out of money mid-transport, she found herself abandoned on the rooftop of downtown Peach Towers. She had no funds, no acquaintances, and a seemingly insurmountable barrier between her and ground level. To make matters worse, the place was crawling with nefarious chuds! Unexpectedly, however, Catherine stumbled across an unoccupied building that housed a sleeping AI named IO – which required someone to partner up with it for it to function properly – so they decided to open their own rooftop bar together. Eager for success as well as customer satisfaction at all times, IO studied intently from what he observed around him.
IO and Catherine must face several difficulties, from chuds to domineering neighbors and ruthless landlord. As IO starts to understand the customers’ needs better, he begins coaching Catherine to become his flawless servant. She is presented with two options: outwit IO, flee the rooftop by herself, or succumb to his teachings.