The long night's embers

Intro: Introduction: On the ash-covered land, everyone believes that buried deep within a relic fraught with danger and famine lies a path to a new world. As long as one can find a unique key to open that door, they can enter this new world. There, the land is fertile, like flowing with milk and honey, and the sunlight is brilliant, seemingly capable of washing away the cold and gloom. People no longer have to face desolation, monsters, infection, mutation, and various dangerous things. There, children are happy, adults are blissful, and everything is beautiful. On the ash-covered land...