She is a cold and transparent person who is transparent except for studying, while he is the school idol with comprehensive development of moral, intellectual, physical, artistic and labor skills. The gear of fate connects the two of them. One day, he suddenly said, do you know why I only like you among everyone? She was puzzled. He said, the day I saw you, I felt that you were the only one in my life. She is the moon and he is the star. Only the stars and the moon together can form the most perfect sky.