The group NCT DREAM (Mark, Renjun, Jeno, Haechan, Jaemin, Chenle, Jisung) did the difficult thing. With the first full-length album ‘Hot Sauce’, the K-pop idol group’s first regular album broke the record for the best Initial first week album sales within SM Entertainment. NCT DREAM has become an invincible team. NCT DREAM’s ‘Hot Sauce’ was released on the 10th of last month. Furthermore, within 16 days of its release, a total of 2,040,360 copies were sold, and NCT DREAM became a ‘Double million seller’. ‘Hot Sauce’ topped the Hanteo Weekly Chart for 3 weeks in a row. The dominant reaction is that the success of NCT DREAM is because ‘7 Dream’ was completed with the reunion of Mark, who graduated from the team. ‘Hot Sauce’ is the first album released by NCT DREAM, which became a 7-member group after Mark’s reunion, and the first full-length album in 6 years, so the reaction from fans was explosive. NCT DREAM, where ‘7 dream’ gathered and wrote ‘7 dream’s Success Equation’.