[DeepL Translation - needs review] Volume 1 Introduction: Twin high school students Kamba and Shoma and their younger sister Youmari live together. One day, the siblings visit an aquarium with Yomari, who is physically weak. While they are having a good time, Yomari collapses and is rushed to the hospital. Kanba and Shoma are in despair, but suddenly Yomari gets up and ......? The original novel of the popular TV anime "Rinpingu Drum" by Kunihiko Ikuhara of "Sailor Moon" and "Revolutionary G...
