Technology's rapid advancement is evidenced by the widespread use of videophones and continuous wireless internet connection. Unfortunately, the government's lack of caution leads to a skilled hacker infiltrating the national information archive. With this information, the hacker creates the infamous Platonic Chain website, exposing personal data to individuals and their acquaintances. As the website gains notoriety, three young girls named Hitomi, Rika, and Kanae coincidentally stumble upon it. Their journey is documented in a 15-minute special for the Platonic Chain TV series.