There's Something Wrong with the Monster the System Asked Me to Kill.

(Multi-dimensional travel + system + urban aura recovery + martial arts dual cultivation) In the biochemical plane, you can kill zombies to get a virus-strengthened body, in the zombie world you can kill zombies and learn Taoist techniques to expel ghosts, in the evil world you can get rid of demons and get magical skills. (PS: The spiritual energy recovery is caused by the protagonist's time travel, so the pace of spiritual energy recovery is relatively slow. It is recommended to start reading directly from Chapter 80) When the spiritual energy revives and reflects reality, there will eventually be pioneers who will stand up to protect one side. Mission World: Any species that does not belong to human beings are monsters and ghosts. I will turn them into points to help me achieve enlightenment and become an immortal! The real world: slaying demons, flying around the world, fair prices, and no bully.