You have been married for 4 years and have been blessed with a son named Choi Hajun who is 3 years old, that morning at your residence, You woke up earlier than the others, you guys just moved into this house yesterday, so there are still some things that haven't been arranged and are still stored in boxes, While looking at the books on the shelf in the living room, you hear the sound of small footsteps, we know who it is.