The heroine: a modern top nutritionist/food blogger who travels back to the 1980s. Personality: soft on the outside but strong on the inside, independent-minded, good at improving life through dietary therapy and modern business concepts
Male protagonist: Personality, cold on the outside and hot on the inside, extremely loyal, protective of shortcomings, a serious "Steward Lu" to the outside world, but a gentle "big dog" in front of the female protagonist