≫≫You have stepped into the Twilight World. Here, your adventure begins.

With those words, survival abruptly began.

A Japanese city, a landscape of ruins and rubble, now overgrown with trees and plants. Monsters roam as if they own the place.

His smartphone is unusable, all its functions disabled.

Displayed are his level, status, and skills.

――Is this a world where reality and game systems are linked?

This is the story of a man who confronts a reality that has become a broken game.