In the shadow of the radioactive wasteland, the "Lighthouse" is not a shelter, but a steel cage imprisoning the ancient "Weeping Goddess". Young Su Bai picked up the taboo Λ-7 key, but his best friend Lin Mo was transformed into a living interface linking the power of the goddess. When the "Lighthouse" tried to obliterate Lin Mo's will and turned it into a key carrier, Su Bai fell into the abyss with the key and fell into the resistance stronghold "Rust Town" and the goddess's flesh and blood cage - the "womb".
The key became a cold chain, conveying Lin Mo's pain of being torn apart by brainwashing and Su Bai's near-death struggle. The truth is revealed: Λ-7 is a biological battery grafted on the goddess's broken body, and the key is the horn that awakens her. The ultimate weapon of pursuit, the goddess's destructive fury to break through the shackles, Lin Mo's sinking between the brand and awakening, Su Bai's willingness to fuse with the key to maintain the connection and sink... The fate of the wasteland is tied to a thread.
Sacrifice ignites the light of return, and the key to sinking anchors the embers of new life. When the "lighthouse" collapsed under the revenge of its own imprisoned power, the gods who broke free returned to pure embers. The interface of awakening and the key to sinking became the stubborn fire in the long night of the wasteland, illuminating the slim new life called "Ember Era".