Watch on Soap2day. 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.