Jung Woo and Jun Hee have been friends since high school. Jun Hee used to struggle with a troubled home life and an abusive uncle. He found comfort in Jung Woo's support. His friend's kindness made Jun Hee fall in love with Jung Woo. They eventually started a relationship. Both teenagers shared a passion for music and dreamed of achieving fame together.
Years later, an agency approaches Jung Woo and Jun Hee, eager to turn them into stars. The CEO offers them creative freedom. Jung Woo can write the songs, while Jun Hee will perform them. However, there's one more condition. The agency wants to add a third member to their group. The newcomer, Alex, is a rising star with striking looks, and the CEO believes he'll boost their popularity. While Jung Woo and Jun Hee prefer to remain a duo, they reluctantly agree to work with Alex.
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