Mu De High School is a super school founded by Xiao Junli's father, Xiao Yuan. It has an elegant environment and is a good place to cultivate one's mind and cultivate one's character. In fact, this is also the place that Xiao Yuan found for himself after washing his hands. Here he protects every student from the pollution of the dark society outside and successfully graduates and even enters college. Since his eldest son Xiao Junli After graduating from college, he left this place in the hands of his son and long-time brother Meng Duohan, and traveled around the world. Seeing that the boss was gone, all kinds of people were ready to destroy this joyful school. Among them, "Wu Mo", who was defeated by Xiao Yuan, was the most rampant. Wu Mo controlled a group of demon organizations composed of warriors and Mohists. Of course, the demon world is ready to go, and the elders of the spirit tribe can't wait any longer, so they send the super charming and super cute Qing sisters to help out, and the fun begins.