The Psyren game begins. Ageha must protect Amamiya in a world overrun by monsters.

Ageha and his friends have ended up in a death game. While heading for the finish line, before they can make it to safety, an unworldly monster calls a Taboo appears before them.

In a bid for survival, Ageha undergoes PSI training. Meanwhile, the actor Oboro and opportunistic Kabuto also receive phone cards.

A giant monster appears in the Psyren world where Ageha and the other Drifters have been teleported. Then, it turns out that the person standing in their path is Hiryu’s close friend, Tatsuo.