Season 1
Episodes
S1 · E1 · 6 Jul 2025 · 24 min
My First Mineral Hunt
High school girl Ruri meets graduate student Nagi while collecting minerals in the mountains.
S1 · E2 · 13 Jul 2025 · 24 min
The Value of Golden Color
Ruri is determined to find gold, but Nagi explains that it might not be as likely as she hopes.
S1 · E3 · 20 Jul 2025 · 24 min
The Lost Planet
Ruri meets Nagi's colleague Imari, and the three embark on a journey to find a lost mine.
S1 · E4 · 27 Jul 2025 · 24 min
Study of Sands
In search of sapphire, Nagi teaches Ruri how to study sand, but Ruri prefers to hunt on a bigger scale.
S1 · E5 · 3 Aug 2025 · 24 min
Worlds Seen and Unseen
Ruri, Nagi, and Imari head to the beach in search of agate, and Ruri learns about the long lifecycle of rocks.
S1 · E6 · 10 Aug 2025 · 24 min
A Closer Look into the Blue
Just as the group begins searching for sapphire on foot, Ruri uncovers a grave mistake that halts their plans.
S1 · E7 · 17 Aug 2025 · 24 min
Seaside Recycling Studio
Ruri finds sea glass on the beach and runs into her classmate Shoko, who has a secret passion for minerals.
S1 · E8 · 24 Aug 2025 · 24 min
The Golden Elegy
Ruri teams up with Shoko for a science project, which takes a turn when they discover a strange, orange rock.
S1 · E9 · 31 Aug 2025 · 24 min
Time Capsule of 1.9 Million Tons
Ruri and Nagi head out to hunt for opals but discover that the area has already been fully excavated.
S1 · E10 · 7 Sept 2025 · 24 min
Sentence to an Abandoned Railroad
Imari leads a hunt for manganese ore, when the group encounters a mystery along abandoned railroad tracks.
S1 · E11 · 14 Sept 2025 · 24 min
The Sapphire Cradle
When Ruri has trouble deciding on her future, she turns to her study of sapphire.
S1 · E12 · 21 Sept 2025 · 24 min
Memories Come with Rocks and Noise
When Ruri discovers her grandpa's old crystal radio, she's determined to restore it.
S1 · E13 · 28 Sept 2025 · 24 min
Look Up, Examine, Search! And Next!
Ruri, Shoko, Nagi, and Imari take a trip together, where they search for meteorite at a hot springs inn.
Data and images from TMDB.