After a breakup, MiniMo (Sammi Cheng) lost control of her diet and her weight rose to 260 pounds. She lost her slim figure. She agreed with her first love, Kurokawa, to meet in Japan ten years later, but she felt inferior because she no longer looked the same. She met Fatty (Andy Lau), who was also extremely fat like her. Fatty sympathized with her and decided to help her reshape her devilish figure. Fatty trained Mini with a hellish weight loss method. In order to help her lose weight successfully and get more money for her to go to a professional beauty salon to lose weight, Fatty was willing to get punched on the street in exchange for payment. Mini was deeply moved. Mini returned to her original appearance and went to the appointment. Kurokawa proposed to her, but she still missed Fatty who had silently paid for her and looked forward to the day when she would meet him again.