Due to the divorce of his parents, Zhong Zhi, who has just reached the age of 10, has no choice but to go to the countryside with his mother to live with his grandfather. Once upon a time, Zhongzhi was chosen as a "Kylin to send a son" when he visited the shrine. There is a local legend that the child chosen as the unicorn to send his son can get the legendary flying sword guarded by the Great Heavenly Dog on the top of the mountain. It is said that the flying sword was used to maintain peace, and his companions ridiculed him for not daring to go to Datiangu Mountain to take the sword given by Kylin. He was scared back after halfway through the attempt. On the other hand, the thousand-year-old magic man Baoxian Kato (Yuji Toshikawa) comes back to life, taking advantage of the grievances of waste goods, throwing them and the captured monsters into the fire to form an evil monster legion, and leading them in an attempt to destroy mankind. Under the efforts of monsters such as Mountain God, Hetong and Chuan Ji, Zhongzhi passed the test. In order to defend the world, Zhongzhi decided to work together with the monsters to fight to the death with the great villains, and the monster war officially began!