Tremble! HEART J9 and Friends Image/Illustration: Ken Mizuki There are stains on the booklet. [CD Listening Comments] This album contains everything from the "J9 Series" that adorned the golden age of anime, so if I were to write something like "nostalgic~," I'd probably get scolded by the fans, but that's the honest feeling. If you haven't been keeping up with upbeat anime songs lately, please give this a listen.