The latest character trailer has been released for the ongoing Ruri Rocks TV anime series, spotlighting Shoko Seto. The series began broadcasting in Japan on July 6, 2025 and will run for 13 episodes.
Additionally, a music video for the anime’s main opening theme song “Hikari no Sumika” by Japanese singer Rei Yasuda was also released.
Shingo Fujii (Onimai: I’m Now Your Sister!) is directing the anime series, with Michiko Yokote (Love Is Indivisible by Twins) as series screenwriter, Mayu Fujii as character designer, Kohei Yoshida (Makeine: Too Many Losing Heroines!) as sound director, Daisuke Achiwa (Atelier Firis: The Alchemist and the Mysterious Journey co-composer) and Kazuki Yanagawa (Atelier Firis: The Alchemist and the Mysterious Journey co-composer) as music composers. Studio Bind is in charge of the animation production.
Other staff include Yasuhiko Akiyama (Onimai: I’m Now Your Sister! co-prop designer, Episode 3 storyboard artist and director et al.) as assistant director, Shunichiro Yoshihara (Bubble, Summer Pockets) as background art director, Makiko Doi (Onimai: I’m Now Your Sister!) as color designer, and Takuya Ogata (VTuber Legend: How I Went Viral After Forgetting to Turn Off My Stream) as compositing director.
Meanwhile, the anime’s main voice cast includes:
- • Miyari Nemoto as Ruri Tanigawa
- • Asami Seto as Nagi Arato
- • Saki Hayashi as Shoko Seto
- • Misuzu Yamada as Aoi Kasamaru
- • Yume Miyamoto as Yoko Imari
The anime is based on the mineralogy manga series by Keiichiro Shibuya, which has been serialized in Kadokawa’s Harta since August 10, 2019. Six tankobon volumes have been released as of July 2025. The manga’s Japanese title is Ruri no Houseki.
Crunchyroll is streaming Ruri Rocks worldwide, outside of Japan, and describes the main synopsis as:
High school student Tanigawa Ruri loves shiny things, so she heads to the mountains in hopes of finding some crystals for herself. There, she meets Arato Nagi, a college student majoring in mineralogy, and they start collecting minerals together. Sometimes they walk mountain trails searching for crystals, sometimes they wade into rivers looking for garnet stones, and sometimes they examine minerals Ruri has never seen before through a microscope as Nagi guides her into the world of mineral-collecting. Thus the scientific adventure begins in earnest!
Sources: Ruri Rocks Official Twitter (via AIR News), Crunchyroll News
