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.

After dying young, Takuto reincarnates as the god of Mynoghra, an evil civilization from his favorite game Eternal Nations. With hero Atou's help, he aims to rebuild despite challenging traits.