I Am a Ghost Cultivator in Dasui. Who Is the Strongest Ghost Cultivator?

Song Xuning traveled to a world called Dasui in the summer. By some strange coincidence, she actually wanted to make money from funerals. The system that was triggered unintentionally has a domineering name. The strongest one you promised? Ghost cultivator? Don't run away from the small system! Please explain to me the unauthorized binding!