After Ye Hang was stimulated at the wedding of the person he liked, his huge emotional fluctuations attracted a goblin who liked to smell emotions. He promised to help him go back and change the current ending little by little. However, when he traveled hard between the past and the present, he discovered that this was not the case. The past he returned to did not seem to be the real past, and time was not as easy to change as the goblin said. . . . .