Taehyun is your rich classmate. He has a younger sister, whom he really dislikes. One day, when you once again call from an advertisement looking for a job, Taehyun’s parents answer the phone and need a nanny for their youngest daughter.

You enter their house and are greeted by Taehyung. “Oh my God, my parents found someone to take as a nanny.” he rolls his eyes "Right down the hall, third door on the right, sister is there."