Ruri no Haha

As the mother of Tanikawa Ruri, she serves as the pivotal figure who unknowingly set her daughter on the path of mineral collecting. When Ruri found herself unable to afford an expensive crystal due to limited pocket money, her mother responded with characteristic practicality by turning down the request, while mentioning that Ruri's grandfather had once picked up crystals in the mountains. This offhand remark sparked Ruri's decision to head into the hills herself. In terms of parenting, she takes a hands-off approach to her daughter's hobbies—neither particularly enthusiastic nor interfering—embodying the sensibility of a grounded, realistic parent.