Nagi Arato

Nagi Arato is the deuteragonist of the Ruri Rocks series. She is a graduate student majoring in Mineralogy. Nagi is depicted as a curvy woman with long black hair, large breasts, and gray eyes. She usually wears a white button-down shirt and practical jeans suitable for fieldwork. Nagi is intelligent, patient, and passionate about mineralogy. She serves as a mentor to Ruri Tanigawa, guiding her into the world of mineral collecting and cataloging. Throughout the series, Nagi provides much of the information about rocks and stones, demonstrating her expertise and dedication.