1. Hajimete no Kôbutsu Saishû ⭐ 8.2

06 Jul, 2025 · 106 votes

Schoolgirl Ruri wants a quartz necklace and heads to the mountains, where she meets geologist Nagi who helps her out with her war hammer.

Director: Shingo Fujii

Watch Episode 1

2. Kin'iro no Kachi ⭐ 8.8

13 Jul, 2025 · 86 votes

Nagi takes Ruri gold prospecting.

Director: Yasuhiko Akiyama, Shingo Fujii

Watch Episode 2

3. Nokosareta Hoshi ⭐ 8.6

20 Jul, 2025 · 79 votes

Nagi introduces Ruri to her colleague Yoko. The three go exploring an abandoned mine.

Director: Akie Ishii, Shingo Fujii

Watch Episode 3

4. Study of Sands ⭐ 8.6

27 Jul, 2025 · 67 votes

Ruri studies sands to find sapphires.

Director: Yurika Tsushima, Shingo Fujii

Watch Episode 4

5. Worlds Seen and Unseen ⭐ 8.7

03 Aug, 2025 · 63 votes

Ruri, Yoko, and Nagi search a gravel beach and the mountains for quartz and platinum. Nagi explains the role of rocks in the history and formation of the world.

Director: Yûichi Okada, Shingo Fujii

Watch Episode 5

6. A Closer Look into the Blue ⭐ 8.7

10 Aug, 2025 · 56 votes

Ruri, Nagi and Yoko go searching for sapphire deposits.

Director: Hironori Tanaka, Shingo Fujii

Watch Episode 6

7. Seaside Recycling Studio ⭐ 9

17 Aug, 2025 · 59 votes

A new rock-loving girl, Shoko, appears. The party learns about sea glass at the beach.

Director: Masaho Hori, Shingo Fujii

Watch Episode 7

8. The Golden Elegy ⭐ 8.7

24 Aug, 2025 · 54 votes

Shoko and Ruri examine water quality at the river, which leads them to discover orange zincite.

Director: Yasuhiko Akiyama, Tomio Yamauchi, Shingo Fujii

Watch Episode 8

9. Time Capsule of 1.9 Million Tons ⭐ 9

31 Aug, 2025 · 60 votes

The team looks for opals at the river, and discover quartz and pyrite too.

Director: Yûichi Okada, Shingo Fujii

Watch Episode 9

10. Sentence to an Abandoned Railroad ⭐ 8.3

07 Sep, 2025 · 52 votes

The party goes over an abandoned rail tunnel for manganese, rhodonite and rhodochrosite.

Director: Akie Ishii, Shingo Fujii

Watch Episode 10

11. The Sapphire Cradle ⭐ 9

14 Sep, 2025 · 52 votes

When Ruri has trouble deciding on her future, she turns to her study of sapphire.

Director: Yurika Tsushima, Shingo Fujii

Watch Episode 11

12. Memories Come with Rocks and Noise ⭐ 9.1

21 Sep, 2025 · 52 votes

When Ruri discovers her grandpa's old crystal radio, she's determined to restore it.

Director: Ayumu Uwano, Shingo Fujii

Watch Episode 12

13. Look Up, Examine, Search! And Next! ⭐ 9.1

28 Sep, 2025 · 58 votes

Ruri, Shoko, Nagi, and Imari take a trip together, where they search for meteorite at a hot springs inn.

Director: Shingo Fujii

Watch Episode 13