As the principal, Yabami founded Miden Academy to exorcise spirits bound to their social media accounts and become digital spirits called "dead accounts". Her main mission is to organize and monitor the exorcism project for the spirit of the dead account named "Sabishigariya_K" or "The lonely K", for students with cyberkinesis ability. K is an 8-year-old ghost who is at an extreme level, his power is "ghost blue flame", a blue flame that can take the life of anyone who touches it, even just by looking at K, someone's eyes can bleed. Every medium spirits had fighting for his exorcism, but he was dangerously strong with his deadly blue ghost flames. This project has failed many times, and this year is the last chance before K finally completes his mission in building the "Kingdom of dead accounts" all across Japan.