Hyperbola of Youth

Myeongho Hwang Hae a middle school teacher who had grown up in poverty and Bunam Yang Hun the first son of the president of a trading company attend the same university A doctor suggests that Bunam who is sick due to overeating and Myeongho who suffers from malnutrition should switch life styles for two weeks While living in each others house they fall in love with each others younger sister and get married at a joint wedding ceremony