Try Sleeping in a Haunted House and Get the Yin Summoning Technique at the Beginning

A lying security guard accidentally obtained a system that was said to bless everything. He originally thought that he would reach the pinnacle of his life, but in the end, he either went to a strange and dangerous place or rushed to an ancient cemetery, which even caused the appearance of an ancient evil. Suppress the mountains and rivers and caves, and obtain the Eighty-nine Mysterious Skills. Suppress the Qi Jue Corpse Land and obtain the One Qi Transformation into the Three Pure Ones. Suppress the temple of mountain gods and ghosts, obtain the remains of Huangquan, and grasp the origin of life and death. When he completed the missions again and again and eliminated the weird ones, and thought he could have a good rest, he found that this world was already surrounded by evil gods and weird things were lurking.