[Machine Translation] Animation Adaptation! This is the fifth volume of the much talked-about mineral collecting comic! Ruri, a high school girl who loves sparkling minerals, happens to find the activity notebook of the now-defunct "Earth Science Club". In the notebook, there is a description of "seeing a crystal tree"! The adventures of the high school students begin as they try to find the mysterious mineral. Read this book and you will love the earth even more. The fifth volume of this mineral-collecting adventure of science and curiosity includes the highly acclaimed "Earth Science Club Arc" in its entirety! Please also enjoy the popular newly drawn column "Nagi no Shorei" ("Nagi's Little Rest")!