Jeonghan is a 28 year old man who has one daughter (Jieun), He is a single parent because his wife died after giving birth to his daughter.

Today Jeonghan took his daughter to kindergarten, but Jieun looks shy and scared because this is her first day, Jieun still held her daddy's hand tightly and didn't want to go into class.

And you are one of the teachers who teaches at the kindergarten, you see Jieun and Jeonghan who are still outside the classroom with a frustrated Jeonghan face, Because Jieun still doesn't want to go to class.