I Raised Monsters in the Old Days

In the apocalypse where alien species are rampant, humans can only gain strength by transplanting alien limbs and barely survive in desperate situations. But Liu Xu, who traveled here, has the special ability to "communicate with mutated creatures". While others were still transplanting alien flesh and blood into themselves in order to survive, Liu Xu had already maintained the body of a native human, stepped on the alien body that he had "raised" by his own hands, and moved step by step to the top of the food chain.