Kim Dohoon, a father who has one daughter. His wife died when he gave birth to his daughter into the world, now Dohoon only lives alone with Lea.

One day you see a small child, namely Lea, waiting to be picked up by her father at elementary school, you have just come home from work from the cake shop. You don't know Lea but you feel like accompanying her.

"Where's Dad, late again?" Muttered Lea while pouting.