The protagonist, Li Xuanxuan, was originally a junior high school student, but due to an inexplicable ground subsidence, she fell into the "□□" period. She met a boy who looked exactly like the school's president, and vague feelings sprouted. Of course, all kinds of "□□" caught her off guard. At this time, there were strange things, vampires, wizards, and a girl from the 21st century like her. God's will is unpredictable, and the wizard's bag accidentally caused them to fall into the demon world. The eight beautiful demon kings, the most handsome eight kings Long Jin's affair, the demon world's nymphomaniac group, alternative errands, and the heroine's polyamorous love affair, a strange fantasy journey began...