Similar to its drama contemporaries, Beautiful Days involves conflicts in family relationships, as well as a love triangle.

Into the scene comes two girls from an orphanage, Yeon-soo (Choi Ji-woo) and Se-na (Lee Jung-hyun), who share a sisterly bond.

Yeon-soo finds a job working at Victory Records in hopes of one day meeting Se-na again and becomes involved in the lives of the stepbrothers, Min-chul and Sun-jae.

Many of the scenes were filmed on location in Seoul:[1] The original script had intended that the character of Yeon-soo would die, but in response to a flood of protest letters from anguished viewers, the drama lets her live.

[citation needed] The series aired in Japan on NHK in October 2004; it was popular and well received by Japanese viewers.