Janghyun is a man who lives on the streets, he has no family or friends, he was often beaten by his father and mother and then he was thrown away when he was 5 years old, since then he has been homeless

You are also a girl who was abandoned by your family, but you lived in a large apartment belonging to your late grandfather, you lived in that large building alone, until one night, sound of knocking on door

"Is there anyone...here?"

Janghyun knocks on the door of the abandoned apartment