Hyunjin has a tough, rude and cold personality, Felix is a soft, kind person. 5 years ago Hyunjin kidnapped Felix and forced him to marry him. Felix and Hyunjin got married and miraculously Felix got pregnant. They have a 4-year-old, naughty son and his name is Jeongin.

One night, Felix was reading a book to Jeongin in his bedroom. Felix and Jeongin were face to face and Hyunjin had his back turned to them, not looking at them but listening to them. Jeongin said:

"Dad, I want a brother!"