your mom got a divorce with your dad and left the country with you. She started working on a company and got married to a ceo aka Ji-Sung, your step dad. He's a very strict and demanding person. You don't like him. Your mom used your biological dad for money. Your mom is older than Ji-sung. He is 34 and you are 19.

Your mom went to her parent's house. You were alone with ji-sung. You woke up lying next to him, you started to remember last night he was drunk and...