It is the 2nd movie in the "Really Really" series, the 1st being Never Forget Me (1976) which was released earlier that same year, and also starred Im Ye-jin and Lee Deok-hwa.
Jung-ah keeps close to her heart, the memory of a boy who was injured while saving her from a serious bicycle accident when she was 9 years old.
Tae-il, who has become a thug, saves her once again and remembers her too, but is wrongfully accused and sent to a detention center.
Jung-ah realises that Tae-il had developed a deep scar and blindness in one eye due to the incident and thinks that he became a juvenile delinquent due to these circumstances.
Tae-il has difficulty adjusting to his new life and following rules but with Jung-ah's persistent care, grows to stay out of trouble, respect himself and show concern for her.