
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.

S1 E13 • 9/28/2025
Ruri, Shoko, Nagi, and Imari take a trip together, where they search for meteorite at a hot springs inn.
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