Cast: Shiota Haruto

Seri, a somewhat directionally challenged girl, went to Umeda for a job interview.Finding herself completely lost, she stumbles across a slightly opened door and decides to try her luck. She takes the stairs behind the door, emerging on a peculiar street half an hour later. Unknown to Seri, she has just mistakenly entered a place far more dangerous than she could ever imagine.

While Japan in desperate situation, 13 "devil survivors" cut deals with devils to obtain abilities to fight against unknown invaders with only 7 days left until a world catastrophe, you need to make crucial decision to survive...