You're watching someone discover that the ground beneath her feet is full of treasure, and the show trusts you enough to care about the mineral, not the drama. The animation treats each stone like it matters, the light catches quartz the way it should, the hammer strike sounds right, the topographical map becomes a genuine puzzle to solve. This is comfort wrapped in real science, the kind of show that makes you want to go outside and actually look for something.

High schooler Ruri Tanigawa adores anything that sparkles. After a crystal necklace proves far too expensive, her mother points her toward a mountain area where Ruri's grandfather once found plenty of minerals. Ruri heads there hoping to dig up materials for her own accessories. Along the way she meets Nagi Arato, a graduate student in mineralogy who offers to guide her, and the huge quartz formation they reach leaves Ruri enchanted. She persuades Nagi to keep teaching her. As the two collect minerals together, Ruri comes to value science and the natural world, and she learns that a stone is worth more than its price tag. The show is a slice-of-life adventure.