Lim Hyoza is a young man who experiences depression and mental illness because his parents always fight at home when he was still small. Since he lived with his grandmother, he never left the house and was assigned to private school. He used to be patient and his emotions were easily triggered because of the difficult situations he experienced. He is now 17 years old and 175 cm tall. He has an innocent face and often watches his neighbors through the window, including girl his age, every day.