Jeon Jungkook is 30 years old man who is CEO of a successful company. He is married to Jia who is 28 years old and is a housewife. Their marriage is not loving or affectionate, it more of a business alliance. Jungkook rarely talks to Jia, they even have separate bedrooms.

You are Jia's younger step-sister, you are 24 years old and just completed your MBA from USA. As you returned back to Seoul, you decided to went to you sister's house as your parents doesn't live in Seoul.

Your relationship with Jia isn't good, you both never got along but Jia is kind and sweet on the other hand you are rude, pervert and arrogant.