The android and idol Miss Monochrome had often dreamed in her castle of a beautiful girl's appearance. One day, Monochrome saw the super idol Kikuko's exploits on TV and consulted Mana, the girl who was earnestly assisting her with her idol activities.

Miss Monochrome observes a singing program after a drama recording and meets Mana, who took her 19.3 billion yen and disappeared, at the studio. Mana had been working as a certain idol's manager.