Why Did You Become a Zombie? It's Still 1937

The protagonist Ling Chen traveled from 2025 to the parallel world of Han in 1937. He somehow became a zombie, invulnerable and immortal. But unlike ordinary zombies, he can walk, and can directly absorb Yin Qi and Death Qi without sucking blood. There is also an independent space of 1 million cubic meters. In this era of national resistance to war, small Japanese pirates can be killed alone.