Idolish7 were doing a concert for their anniversary concert together with TRIGGER and ReVale. So after 3rd song,Riku were told to take a rest since Mezzo will take a part but suddenly without showing any sign,Riku were passed out.Iori andthe other were shock and immediately have to stop the concert.All of them were rushing to the hospital and straight to the emergency room. Riku open his eyes and found out that he was at unfamiliar place.He usually can guest the hospital ceiling but this is different.Riku wake up and rushing to somewhere but he fell on the ground because he was to weak.His body was weak.Then there's someone with pink-purlpe hair helping him. "You shouldn't move with sudden since your body is exhausted."said him. "Who are you?" "I can guess you are from another world."said him. Riku still confused. "Then..were am i?.." "Welcome to my division!"said him. ***