The first-year high school girl Ai Xin fell in love with her classmate Cheng Xu after being rescued by him. Although her confession was rejected, she wouldn't give up so easily. With the support of her friends, she did her best to pursue the hopeless relationship. Because he was a robot with an artificial intelligence, there was a series of misunderstandings and mishaps, even as he became a world-saving superhero while going to school. But as he spent more time with Ai Xin, he learned more and more about human emotions, and became more like a normal boy...