NRG Vol. 7 [One of Five: [Album Introduction] Korea's NRG came back "as well". This 7th title is "One of Five". This means that '1 album will serve as 5 single albums.' So far, NRG members have participated in all the songs, but this time there are 5 songs of NRG, 1 memorable group Hamo Hamo (Lee Sung-jin, Lee Seongjin Solo 1 song, Chun Myung Hun Solo 2 songs, Noh Youngmin Solo 2 songs, and the last track Lee Sung Jin solo songs in a classic version, all 12 songs are recorded. The title song 'Additional Book' is an exciting funky rhythm dance song, and it will be strongly appealed to the public by NRG's "delightful, refreshing, entertaining" pleasure with thirst for dance music. In addition to this, the members who composed and wrote NRG 's hit songs' Hit Song' and 'Kang - Aha Manse' also writes and composes his own solo song (Shiny) Is expressed in the lyrics directly, so far the most love of the NRG album, and its completeness is also the best, all of the members are full of confidence. With the withdrawal of member Moon Sung-hoon, future NRG will be together forever with three members of Lee Sung-jin, Chun Myung Hoon, and Noh Yu-min.