Crash Course in Romance plot
Nam Haeng-seon used to be a national athlete. Now, with a positive personality and unlimited stamina, she runs a side dish shop. When her daughter needs tutoring for an entrance exam, she meets the famous and popular Choi Chi-yeol. Although he has amassed wealth and fame through his work, his nature changes with the increasing success. After meeting the cheerful Haeng-seon, he changes step by step and a romance develops between the two of them.