11eyes

Kakeru Satsuki and his childhood friend Yuka are suddenly pulled into an empty version of their town beneath a blood-red sky. Monsters roam this Red Night, and returning to normal offers only a temporary escape.

Other students caught in the same phenomenon possess abilities that may help them survive. Joining forces with the swordswoman Misuzu and their fellow survivors, Kakeru searches for the reason they have been targeted and for a way to protect Yuka from the world that keeps calling them back.