Original soundtrack release from TV series, "M: Ai Subeki Hito ga Ite" co-starring Kalen Anzai and Shohei Miura. The story is based on a fiction novel about behind-the-scenes story of the debut of a legendary J-pop singer, Ayumi Hamasaki. Includes BGM tracks, insert song(s) and the main theme song, "M" by Ayumi Hamasaki. The second disc contains original version of an insert song, "CAN'T UNDO THIS!! (MAXIMIZOR)" and more.