In the last days when energy is exhausted, the city is pulsed with light veins, and priests control the last source of energy. Yunlan is an exiled warrior and the only one who can sense energy breathing. He and the priest Yiyu are forced to form an alliance - one believes in order, the other desires freedom. They embark on a fateful journey, passing through ruins torn apart by energy storms, looking for the legendary "Relic of the First Light." However, every step encounters a collision between power and faith. The mechanical legion of the energy giant is lurking in the dark. The priest's oath and the warrior's rebellion gradually intertwine into an irreversible melody. When energy becomes the shackles of the soul, can Yunlan light up the last ray of light for mankind between destruction and rebirth? This is an epic where energy and faith intersect, fate and struggle collide. In the gap between light and shadow, only choice can change the future.