System: Lifespan Changes to Cultivation Level. I Don't Want to Die.

Other systems give the host a gift package, skills, and treasures. And my system actually requires me to pay for its lifetime before I can use it? Liu Fenghua cherishes his life very much and does not plan on the longevity system. However, there are always bad people in this world. It would be much more cost-effective for the system to take away my life span than for someone else to kill me directly. But who would have thought that once this system is used, it cannot be stopped... From now on, others will use their spiritual stones, while Liu Fenghua will use their lives; Others are obsessed with Krypton skills, but Liu Fenghua is obsessed with life; Others are gifted, but Liu Fenghua is destined; As long as I don't die, I will die. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.