Joseph has always lived half-asleep, blurring reality with dream. When the world shifts into a dungeon of stone, monsters, and strangers, he doesn’t panic—he accepts it. While others cling to rules and roles, he treats survival like exploration: tinkering, testing, finding out what breaks and what holds.

His methods are unorthodox—scavenging, traps, experiments with weapons and magic—yet they carry him further than anyone expects. To him, it’s not glory or heroism, just something to enjoy before he “wakes up.”

But the future is uncertain, as ‘Han’ a man burdened by the memories of his previous life's failure, is hell bent on changing the future for the better. What does his encounter with Joseph really mean and can they help each other while chasing different destinies. What’s the dream and what’s reality, or are they so close they are the same?