Doomsday Fortress, I Can Rub Gundam with My Hands

The time traveler Lin Fei has come to the end of the world with a synthetic matrix, and he can use the materials to create science fiction equipment such as magic rifles and mechas. Hiding behind the scenes, he helped his master Huang Yan overthrow Speaker Bai Guangyuan, thwarted Wei Qiang's conspiracy, and rescued a doctor of botany to solve the food crisis. Faced with the infestation of Scarlet Harbor and the terrifying insect swarm, Lin Fei continuously upgraded his equipment and teamed up with Huang Yan to go deep into the mother insect nest in Fengshan. With the aesthetics of violence and the refreshing feeling of washing the ground with hot weapons, he finally killed the mother insect, guarded the sand ridge barrier, and opened up a new life in the apocalypse.