Begin the practice of asking demons from the roots of the dead spirit

Description

After being reincarnated and practicing in the world for sixteen years, I started to practice asking demons from the dead spiritual roots.
——————
On the day of the test, if the spiritual root is at the fifth level, it will be difficult to break through the middle stage of Qi training in this life, the immortal gate will not be closed, and immortality will be difficult to achieve.
It happened that the Yi slaves of the Demon Sect searched for people with low qualifications from all over the country and became "Spirit Slaves". They used the life-burning magic skill to cultivate many batches of consumables, and asked them to cultivate themselves to make spiritual sand for the enjoyment of the Demon Sect.
Wang Yu was taken to the Demon Realm in Shihu City, and entered the gate of the Demon Realm as a spiritual slave. Fortunately, he had the [Placement Column] nearby, which could solve many problems!
——————
[Placement Column 1: Blood Burning Skill]
"Blood Burning Kung Fu (0/100): Practice forty-eight times a day, and you can achieve it in a year."
Ps: (Introduction is weak, move to the main text)