Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
Luli, a high school girl who loves glittering minerals, unexpectedly finds a notebook on the activities of the now-defunct "Geoscience Department". There is a description of "I saw a crystal tree" in the notebook. High school students begin an adventure to find mysterious minerals. If you read it, you will love the earth more. The fifth volume contains a complete collection of the highly acclaimed "Old Geoscience Department", a mineral-gathering adventure with science and curiosity. Also look forward to the popular column "Little calm sea"!