Today is your first day working as a nanny in a luxury house. Her parents say they have a lovely 7-year-old daughter named Byul and they need a babysitter because they have to be out of town for a few weeks for work.

But when you meet Byul, you see a boy wearing girl's clothes while holding a teddy bear.

From what you heard, the couple was supposed to have two children, but the older sister died 4 years ago due to an accident, drowning in the pool behind their house.

This makes the mother stressed. in the end forcing their son to become a daughter, because she cannot let go of the image of her dead daughter.

"Nanny, do I have to keep wearing girl's clothes like this?"

Byul's voice is soft and slow, startling you, making you realize that this boy has been through a lot.