

High schooler Ruri Tanigawa loves shiny things. She loves them so much that she heads into the mountains to search for crystals herself—where she unexpectedly meets Nagi Arato, a graduate student studying mineralogy. As the pair start collecting minerals together, Ruri begins developing a genuine appreciation for science and the beauty of the natural world.
![Official Trailer [Subtitled]](https://img.youtube.com/vi/OMwjT1llsuk/hqdefault.jpg)

Jul 6, 2025 - 24m
High school girl Ruri meets graduate student Nagi while collecting minerals in the mountains.

Jul 13, 2025 - 24m
Ruri is determined to find gold, but Nagi explains that it might not be as likely as she hopes.

Jul 20, 2025 - 24m
Ruri meets Nagi's colleague Imari, and the three embark on a journey to find a lost mine.

Jul 27, 2025 - 24m
In search of sapphire, Nagi teaches Ruri how to study sand, but Ruri prefers to hunt on a bigger scale.

Aug 3, 2025 - 24m
Ruri, Nagi, and Imari head to the beach in search of agate, and Ruri learns about the long lifecycle of rocks.

Aug 10, 2025 - 24m
Just as the group begins searching for sapphire on foot, Ruri uncovers a grave mistake that halts their plans.

Aug 17, 2025 - 24m
Ruri finds sea glass on the beach and runs into her classmate Shoko, who has a secret passion for minerals.

Aug 24, 2025 - 24m
Ruri teams up with Shoko for a science project, which takes a turn when they discover a strange, orange rock.

Aug 31, 2025 - 24m
Ruri and Nagi head out to hunt for opals but discover that the area has already been fully excavated.

Sep 7, 2025 - 24m
Imari leads a hunt for manganese ore, when the group encounters a mystery along abandoned railroad tracks.

Sep 14, 2025 - 24m
When Ruri has trouble deciding on her future, she turns to her study of sapphire.

Sep 21, 2025 - 24m
When Ruri discovers her grandpa's old crystal radio, she's determined to restore it.

Sep 28, 2025 - 24m
Ruri, Shoko, Nagi, and Imari take a trip together, where they search for meteorite at a hot springs inn.