Waterfowl

[Doomsday➕No cp➕strong female protagonist] In the star year 2087, the end is coming, and the plants are in riots. The system approached You Yuan, who had just been laid off, and said it would help her survive the apocalypse. You Yuan originally wanted to live, but was deceived by the staff's words into a guard. By accident, he became a doomsday boss. The ginkgo tree in the orphanage, the manzhushahua in the scientific research institute... Everything seems to point to a possibility. Was the death of her parents an accident? If it is man-made, who did it?