Manga
Psyren was written and illustrated by Toshiaki Iwashiro. The series was published in Japan by Shueisha, and had been serialized in the shōnen manga magazine Weekly Shōnen Jump since the 2008-01 issue (December 3, 2007). Publication has concluded, with serial chapters collected in sixteen tankōbon volumes.
In North America, series licensing by Viz Media was announced in April 2010, and the first chapter appeared in the January 2011 issue of the North American version of Shonen Jump.
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