At this point, she was predestined to know the fat man (Andy Lau) who was in the same boat, and naturally she soon became a bosom friend. I learned that Mini and his first lover Kurokawa made a ten-year contract ten years ago and met again ten years later. Now there are only 45 days left before the ten-year deadline, but Mini Mo, who has become a fat woman, certainly doesn't want to meet her first love because she is afraid that Kurokawa will see herself like this. In order to fulfill his lover, the kind-hearted fat man is determined to help restore his original body shape with Mini. For the rest of my life, I will help Mini lose weight in hell, step on a bike, pull an oil drum and be tired by hook or by crook. Many things happen. In these forty days, both Fatty and Mini have lost weight successfully. On the day of the ten-year contract, Mini and Kurokawa were together as scheduled, and Kurokawa proposed to her. She originally wanted to hide the fact that she was fat in the past and promised Kurokawa. But Kurokawa finally learned the truth that he had become a fat woman. Things were full of twists and turns and the story developed in an unexpected direction.