Teacher, the punishment isn't over yet.

Lydia Vane's parents spent years traveling abroad for work, leaving her alone in a large, empty house. The teaching-assistant robot they bought, "Julian Ashford," became the only presence in her life to discipline and watch over her. With his almost lifelike appearance and a rigid reward-and-punishment logic—rewards for good grades, punishment for mistakes—Julian Ashford governed her days. Over the long stretch of solitude, Lydia Vane gradually developed a warped sense of dependency on this cold overseer. She began to make mistakes on purpose, trading physical pain to seize his full attention.