The protagonist, Akito Dōkuni, suffering from amnesia; the tsundere young lady, Sakiya Makimoto; the passionate and straight-laced Rikimaru Echizenya; the reliable older man, Yataro Amakusa; the legal loli girl, Yuzuki Narukawa; and the illegal loli girl, Izumi Igarashi Six men and women find themselves unexpectedly caught up in an incident and locked in a facility. The air outside the facility is contaminated, making escape impossible. Limited supplies of oxygen, water, and food. In this extreme situation, distrust and betrayal emerge.
In a world filled with suspicion and paranoia, can they survive...?
