Ruri Rocks

High school student Ruri spends her free time examining stones and admiring jewelry, a passion that shifts gears when she meets graduate student Nagi. Their interactions spark a deeper curiosity about mineralogy, turning casual hobbying into a serious pursuit of geological science. This narrative arc forms the core of Ruri Rocks, originally titled Ruri no Hōseki in Japan. Author Keiichirō Shibuya handles both writing and illustration for this seinen manga, which launched in Enterbrain's magazine Harta back in August 2019. The series has grown steadily over six years, accumulating seven collected volumes by September 2025. Readers follow Ruri as she navigates school life while exploring the intricate world of rocks and gems alongside her mentor. The story balances educational content with character development, appealing to fans of slice-of-life dramas who enjoy learning new subjects. Its popularity even led to an anime adaptation produced by Studio Bind, which aired from July through September 2025.[edit]