"He's awakened..." Mika was seen within the world of PSO2. Aika's strange behavior after Mika's return. Itsuki finds the situation suspicious and begins investigating Aika on his own. But from an outsider's perspective, it looksl like Itsuki is chasing Aika around. As Rina and Itsuki make rounds visiting each club's president to make the after party a reality, Aika occasionally comes up in conversation. Itsuki asks his PSO2 friends and keeps looking for Aika, which irritates Rina. Meanwhile, they hear rumors that PSO2 players sometimes go missing.
Itsuki Tachibana is a student of Seiga Academy, a co-ed boarding high school with excellent reputation, located in a suburb outside the city center. On a day of second semester, he was summoned by Rina Izumi, the most esteemed and praised chairperson, to the student council room, without knowing what awaits him.
