Do You Know Hip Hop will feature rappers who actively promoted from the late 1990s to the early 2000s and pioneered the hip hop genre in Korea. The contestants who once captivated fans of the hip hop genre will once again showcase their unique charms and swag that aren't limited by their age.

Onesun, one of Korea’s first generation hip-hop musicians, appeared on an audition program. Although he did not make it to the finals, he received great attention for the first time in 20 years since his debut. However, he still delivers packages, and at nights he runs the underground hip-hop club ‘In2Deep’ in Hongdae. Onesun’s life and his club ‘In2Deep’ illustrate the reality underground musicians are faced with.

Underground performance hall in Hongdae. Seven nameless rappers hoped to play hip hop and came to Seoul with a vague dream. However, unlike what they thought, they carry a brick or serve more than they stand on stage. The hopes and goals of these seven unknown rappers are at stake. Monthly rents and various bills that put more pressure on them.