Plot:

After trying to rescue a man on the subway tracks, two teens wake up in a room dominated by a mysterious black sphere that sends them to hunt down and kill aliens hiding on Earth.

Tags:

Action Japan Pretty Good Science Fiction Horror Foreign Alien First Ken'ichi Matsuyama Shinsuke Sato Kazunari Ninomiya Yuriko Yoshitaka Kanata Hongō Natsuna Watanabe Gantz Series