High school student Mia is struggling to find motivation in her daily life. However, her mundane routine is disrupted when a mysterious cloud formation appeared in the sky, foreshadowing an unexpected event.
As the day unfolds, a devastating earthquake strikes, Causing chaos and destruction. Amidst the turmoil, Mia discovers a thousand monsters have appeared all over the world, but once the transparent box-like status window grants her deal to regress, her fate changed drastically. What will the future serve to the protagonist?