Psyren Vol 2

Psyren Vol 2 by Toshiaki Iwashiro. A Shonen manga rated Teen, published in English by Viz Media in 2012.

Ageha Yoshina finds a red telephone card labeled Psyren, and when he answers the call, he is transported to a ruined future Japan. Now he must survive the Psyren game and use psychic powers to change the future.