Psyren

Psyren (-サイレン-, Sairen?), literally meaning Siren and stylized as PSYЯEN, is a Japanese shōnen manga series by Toshiaki Iwashiro. Psyren follows Ageha Yoshina, a high school student who is chosen by Nemesis Q as a participant in the Psyren games. The games take place in a world known initially as Psyren, which is revealed to be the real world a decade in the future. Ageha and his friends attempt to alter the future and save the world from becoming Psyren.

Psyren had been continuously serialized in the Japanese manga anthology Weekly Shōnen Jump since December 3, 2007 (issue 2008-01) till November 29, 2010, and has been collected in sixteen tankōbon volumes. The series began publication in America starting with the January 2011 issue of Shonen Jump.