Wo Zai Yi Jie Xiu Mofa

A woman involved in developing a virtual world learning machine dies in an accident and is transported to a fantasy world, bringing the machine with her. The AI inside the machine has a demure elder sister appearance but a promiscuous personality. The machine's internal time flows ten times slower than in the real world, allowing for extensive use of the available time. The AI intends to use this advantage to train and produce the next generation of exceptional masters.