Global Rust, Am I the Final BOSS?

The world is swallowed up by strange "rust". Metal rots, buildings twist, and monsters sprout from the rust. Humanity is forced into a desperate game called "Rusty Sun Hell", struggling to survive under the rust-colored sky. Chen Shuo, an ordinary young man, was involved when his father was dying. His only goal is to fight back to see his father one last time. However, he soon discovered that in this world, death is the end. While escaping and fighting, a "rust fire" fueled by emotion ignited in his body, and he became the only "rust fire warrior". He met Lin Xia, an antibody apostle who had lost his memory, and Ajie, a hacker who saw system vulnerabilities, and formed a life-or-death alliance in the abandoned fortress "Rust Belt City". But they don't know that the so-called game is the examination room of a dying god. Behind the cold prompts of the system are the sometimes rational and sometimes human whispers of God. The conditions for clearing the level are unknown, and every time Chen Shuo kills a monster with rust fire, he is accelerating the death of the god, and is getting closer to the final choice step by step: Is it to inherit the throne of God and bear the loneliness and fate of the entire world? Or cut off reincarnation and find a rust-free future for mankind? When the last rusty sun sets, who will become the new dawn?