I Should've never let you go (idolish7)

{COMPLETE} Since Tenn become an idol, Kujo Takamasa suddently disappeared without a trace of finding him. When Idolish7 finish performed their very first concert, Riku got taken away by a mysterious man. After BoW, Riku shows up and known as a solo idol. What's worst is! Riku lost his precious memories about his own...