Greatest hits album release from Nana Mizuki featuring her 15th single "SECRET AMBITION" through the latest one "Junketsu Paradox" plus "DISCOTHEQUE (theme theme of anime series "Rosario + Vampire")," "Play (insert song of anime series "Magical Girl Lyrical Nanoha StrikerS")," intro theme of PSP game "Magical Girl Lyrical Nanoha A's- THE GEARS OF DESTINY -," and arranged version of "SUPER GENERATION." Blu-ray features "Mizuki Nana Ooini Utau 2" at Nakano Sunplaza and a music clip "POP MASTER" shot at Nippon Budokan on September 3, 2011.