Chen Shi asked, "I heard that only after cultivators die can their primordial spirits come here and attach to skeletons. How did you all manage to get here?"
Tong Qianshou laughed, "We are from the Medicine King Sect, naturally well-versed in various medicinal properties. Before heading to the underworld, we take a drug to induce a state of pseudo-death and are placed in coffins. The Yin Messanger will then pull our primordial spirits away. Once the drug wears off, we come back to life, and seeing that our lifespan is still ongoing, the Yin Messanger will try to send us back to the mortal world. At this time, we prepare plenty of paper money to bribe the Yin Messanger, allowing us to remain in the underworld. We can then possess skeletons to pick the dark flowers."
This kind of scheme requires accomplices. After picking some dark flowers, the accomplice will perform a soul summoning to bring one back to the mortal world to avoid actual death.