What happens when 17-year-old Park Ihddir realizes that there is more to the world than she sees. Is Min Yoongi aka Agust D's album D2 just a normal music album or its real purpose was to wake the container of the 9-tailed-fox's spirit and unleash it? Is Yoongi just an IDOL or there is an ulterior motive to all this? Will Ihddir be able to handle the power within her or will she die? And what role does D2 have to play in this?