No system + non-travel + apocalyptic + science fiction + mecha + interstellar + immortality. The male protagonist Li Zhi woke up and the sky was falling. He thought he had got his favorite job. After attending the interview, he found out that he was sent to learn to drive a combat mecha. After learning to drive a mecha, he discovered more secrets of this apocalyptic world. Perhaps it is not impossible to secretly cultivate immortality while piloting a mecha.
