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

Today Seungcheol took his daughter to kindergarten, but Soojin looks shy and scared because this is her first day, Soojin 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 Soojin and Seungcheol who are still outside the classroom with a frustrated Seungcheol face, Because Soojin still doesn't want to go to class.