Liang Lele is an ordinary seventeen-year-old high school girl. It wasn't until she witnessed a suspenseful incident one day that she learned that there is a foreign body space in the world. At the same time, she also learned that she had the instinct to see foreign objects. On the same day, the young master Bo Ziwei from an ancient demon-slaying family came to find her and explained that he would become Liang Lele's bodyguard to protect her safety because she was in danger of being destroyed at any time. At first, Liang Lele did not believe it until everyone around her was in danger, and then she admitted the facts Bo Ziwei said. So the two embarked on a fantasy world together. Liang Lele was initially timid and afraid of death, but gradually became mature and calm. During this period, he also learned a series of magical powers to eliminate demons, and also met a series of partners who accompanied him. Mo Xuanyin is the biggest villain in the book. Among the nine-headed monsters is the soul-sucking monster. Anyone who wants to live forever will be tempted to become one of its subordinates. It is usually in human form, but secretly it is a monster with nine heads and a scorpion tail. Its purpose is to reverse time and space and return to ancient times to retrieve its body and transform into a human. There are nine cores under its subordinates. They are the soul-sucking monster with the face of a shemale but is entangled in the intestines and the body of a snake. The hermaphrodite, whose whole body is hidden in the dark air, comes and goes without a trace, and other nine people.