"Dream High" takes place at Kirin High School of Art and follows the lives of students as they aspire to become superstars.
Song Sam-Dong (Kim Soo Hyun) lives in the country side and dreams of becoming an owner of a stock farm. He falls in love with Ko Hye-Mi (Bae Suji) at first sight and follows her to Kirin High School of Art. There he discovers his genius like musical talent.
Jin-Gook (TaecYeon) is a gifted dancer, but a troubled student at school. The director of Kirin High School of Art (Bae Yong Joon) recommends to Jin-Gook to enroll at his school. There, Jin-Gook's talents blossom and he now dreams of becoming a global star.
Exchange student Jason (Wooyoung) comes to Kirin High after receiving the top score for new applicants. He comes from abroad and shows outstanding skills as a dancer.
Ko Hye-Mi (Bae Suji) is the most popular girl at Kirin High. She carries herself as a confident girl, but inside hides a sad past. She dreamed of becoming a world renown classical vocalist, but after the collapse of her family she had no choice but to enter Kirin High School of Art. She is loved by Song Sam-Dong and Jin-Gook.
Yoon Becky (Eun Jung) looks up to Ko Hye-Mi, who appears to have everything. They soon become rivals.
Eria (Yoon Young Ah) is a popular teen star. She enters Kirin High School of Art and becomes the object of admiration by her peers. She looks forward to having a "regular" school life.