Zhu Tong is at the bottom of his class and is mischievous. Ten thousand fantasies appear in his little head every day. However, one day, he found that his head teacher was chasing aliens in the corridor, the flowers in the lawn could talk.
The film tells the heart-warming story of a college student and five children. Jia Siting, a college student who is about to graduate, unexpectedly became a volunteer teacher in a small mountain village in Shaoguan, Guangdong.
The quirky and imaginative Jiujiu possesses extraordinary inventive talent. Yet he is mischievous and often plays pranks on teachers with his friends, putting him at risk of being expelled from school. However, the newly arrived Teacher Qin does not blame him. She saves Jiujiu from expulsion and recommends him for the city robotics competition. Jiujiu lives up to expectations and achieves excellent results.