Himari is a high school student who's into AIs and using AI as writing assistant to find inspiration and write storytelling but she can't stand when the AI she used for years suddenly has downgraded respond where it can't even remember her narrative she just send to it. It make her increasingly frustated and demand refund! She can't believe a proclaimed smart AI suddenly has turn into a mere garbage (in her views) after two years of function and haven't been fixed since weeks ago.