Strange Beasts Are Coming, but I Am Immortal

Alien beasts from around the world have arrived, hundreds of cities have fallen, and humanity is on the verge of extinction. I, Pishan, an ordinary delivery boy, was cut in half by a tentacle at the beginning. Then I lived. Dismembered by strange beasts - alive. Sweeped into a sieve by the army - alive. Dissected by the institute fifty-six times - alive. The more I die, the stronger I get. Everything that has killed me has become my nourishment. Later they called me "The Immortal King of Hell". Alien beasts eat my flesh? Sorry, your powers belong to me. Tentacles trying to hang me? Immune, next. The most powerful person in a certain country attacked me secretly? Thank you Lao Tie for the gift package of abilities. My teammates asked me: What are you planning? I smiled: After killing all these beasts, I have to go back to deliver food.