Platonic Chain

In a near-future world where technology has advanced to the point of widespread videophone and wireless internet access, a skilled hacker has breached the national information archive and created the Platonic Chain website, allowing users to access information about themselves and their friends. As word of the site's capabilities spreads, three young girls - Hitomi, Rika, and Kanae - coincidentally discover the platform, which promises to reveal the secrets and connections of those who use it.